Question: Is it appropriate to remove one’s tallis katan while playing sports or engaging in strenuous activities that make one hot and sweaty?
Discussion: Some poskim write that it is not appropriate to do so. While it is true that neither Biblical nor Rabbinic law obligates one to wear a tallis katan at all times, it has become the accepted custom that every male wears a tallis katan all day long.  Rav M. Feinstein rules that since it has become customary to wear a tallis katan all day long, one may no longer deviate from this practice, and one who does so transgresses the dictum of al titosh Toras imecha.
What are the origins of this custom? Why did men choose to be meticulous about donning a tallis katan even when they were not required to do so? The poskim mention two basic reasons: 1) Wearing tzitzis gives us the opportunity to be constantly reminded of our obligations as a Jew, as it is written in Bamidbar (15:39), “That you may see it and remember all the commandments of Hashem and perform them.”  2) The Talmud tells us that wearing a tallis katan serves as protection from “Hashem’s wrath”; when He observes His children performing mitzvos — such as tzitzis — that they are not even obligated to perform, His anger is contained and He views us more favorably. 
It follows, therefore, that no matter the heat or discomfort, one should still be particular not to remove his tallis katan: One constantly needs a reminder of his status as a servant of Hashem, and one should always take advantage of the protection that the tallis katan offers to those who wear it.
There are, however, contemporary poskim who question this ruling. They argue that the mitzvah of tzitzis is only properly fulfilled when one is wearing a garment which benefits him in some way, e.g., it protects or warms him. If, however, the garment does not benefit its wearer in any way, and on the contrary — it makes him uncomfortable or bothers him, then it is possible that the tallis katan no longer falls under the category of a “beged” (a useful garment), and one who wears a useless beged does not fulfill the mitzvah of tzitzis by wearing it.
Question: Are pets muktzeh on Shabbos and Yom Tov?
Discussion: The Talmud states that it is forbidden to move animals on Shabbos. In halachic terms, animals are considered like sticks and stones which have no permissible Shabbos use and are muktzeh machmas gufo, severe muktzeh, which may not be moved for any reason. This ruling is quoted by Shulchan Aruch and most of the later poskim, and no distinction is drawn between farm animals and households pets; all are considered severe muktzeh. Some poskim expressly include “playful animals” in this prohibition.
There are, however, other poskim who do distinguish between farm animals and household pets. In their opinion, a pet is considered like a household item, similar to a toy or a picture, and is not classified as muktzeh at all. While it is advisable to follow the majority opinion and not carry or move pets on Shabbos, those who are lenient have a halachic authority upon whom to rely. Certainly, if the pet is in distress, one may be lenient and move it or carry it.
All opinions agree that it is permitted to touch (without moving) or feed one’s pets on Shabbos. It is also permitted to hold onto a leash and walk a dog in an area which is enclosed by an eiruv. It is permitted to place a leash on a dog on Shabbos.
Question: How mandatory is Chazal’s advisory that a guest should not change his customary lodging place?
Discussion: Rashi explains that there are two reasons behind this advisory:
- Switching lodgings discredits the guest, since he will be considered hard to please or disreputable in some way.
- Switching lodgings harms the host’s reputation, since it gives the impression that his lodgings were unsatisfactory.
If a guest has a bona fide reason to change his lodging place, however, the halachah will not restrict him from doing so. For example, if a guest customarily lodged at a certain home, but came to town for a simchah and wants to stay at the home of the ba’al simchah, that would be permitted. If a guest customarily lodged at a certain home, but upon his return visit the original host was out of town or indisposed, or no longer had the space for guests, the halachic advisory would not apply and the guest could stay elsewhere.
Question: On Shabbos or Yom Tov, is it permitted to use suntan lotion in order to prevent sunburn?
Discussion: Suntan lotion which is in cream, ointment or thick, slow-pouring oil form, is forbidden to be used on Shabbos, as it may be a violation of the Shabbos Labor of Smoothing. It is permitted, however, to use suntan protection which is in a liquid spray form, since Smoothing does not apply to runny, non-viscous liquids such as liquid spray.
Although there is a Rabbinic injunction against taking medicine on Shabbos, suntan protection is not considered medication, since its purpose is not to heal but to protect. It is similar to using insect repellent on Shabbos, which is permitted since its function is also not to heal but to protect.
Taking medication for ordinary sunburn, however, even if it is in spray or liquid form, could be a violation of the Rabbinic injunction against taking medicine on Shabbos. In the atypical case where the sunburn is so severe that one feels “weak all over” or bad enough to require bed rest because of it, liquid or spray medication is permitted. If there is a chance that infection will set in, all medications and ointments are permitted to be used.
Note: Our discussion regarding suntan protection pertains to those who might get sunburned while fulfilling a Shabbos mitzvah, e.g., those who need to walk a long distance to shul on Shabbos. But to deliberately sit in the sun in order to get a suntan is not in keeping with the spirit of Shabbos, and indeed, is forbidden on halachic grounds by some contemporary poskim.
1. Mahri Elgazi, quoted in Tzitz Eliezer 14:49-2; Rav B. Zilber, Yagel Yaakov, pg. 165.
2. The Torah requirement is to place tzitzis on a four-cornered garment when one is wearing such a garment. The Torah, however, does not require that one specifically put on a four-cornered garment so as to be obligated to wear tzitzis; O.C. 24:1.
3. Aruch ha-Shulchan 8:2; Tzitz Eliezer 8:4; Yechaveh Da’as 4:2.
4. Igros Moshe O.C. 4:4; O.C. 5:20-25.
5. O.C. 24:1. See Rambam, Hilchos Tzitzis 3:11.
6. Menachos 41a.
7. See Tosafos, Pesachim 113b, s.v. v’ein, and Gilyon ha-Shas; Rokeiach 331: Kesef Mishneh, Hilchos Tzitzis 3:11.
8. See Halichos Shelomo 1:3, Devar Halachah 25; Tzitz Eliezer 14:49-2.
9. See Koveitz Shiurim, vol. 2, 23:8.
10. Rav Y.S. Elyashiv and Rav C. Kanievsky, quoted in Rivevos Efrayim 7:265 and Yagel Yaakov, pg. 166. See also Ashrei ha-Ish, Tzitzis 2:23, Nezer ha-Chayim, pg. 164, and Doleh U’mashkeh, pg. 27.
11. See Shabbos 128b.
12. O.C. 308:39
13. See Tosafos, Shabbos 45b, s.v. hacha; Shulchan Aruch ha-Rav 308:78; Da’as Torah, O.C. 308:39; Kaf ha-Chayim 308:235.
14. Minchas Shabbos 88:10, quoting Nezer Yisrael and Halachos Ketanos; Az Nidberu 8:36.
15. Minchas Shabbos, 88:10; Yabia Omer 5:26.
16. Rav S.Z. Auerbach; see Shulchan Shelomo, O.C. 308:74-4; B’tzeil ha-Chochmah 5:33-34. There are conflicting sources concerning Rav M. Feinstein’s opinion on this subject; see Sefer Tiltulei Shabbos, pg. 119, and Igros Moshe, O.C. 5:22-21.
17. See Mishnah Berurah 305:70 and Chazon Ish, O.C. 52:16.
18. Under certain, very specific conditions, it is even permitted to walk a dog with a leash in a public domain; see O.C. 305:16 and Aruch ha-Shulchan 5.
19. O.C. 305:1, 8, 10.
20. Arachin 16b.
21. Accordingly, one should not change even from one Jewish-owned hotel to another ─ unless he has a bona fide reason for doing so ─ as it discredits the hotel where he stayed.
22. See Piskei Teshuvos 170:6, quoting Ohalecha b’Amisecha.
23. Based on Da’as Torah, O.C. 328:26; Chazon Ish, O.C. 52:16 and Tzitz Eliezer 7:30-2. 24. Based on O.C. 328:23. See also Mishnah Berurah 301:108.
25. See The Monthly Halachah Discussion, pgs. 90-91.
26. See The Monthly Halachah Discussion, pgs. 101-102, for more details.
27. See Chelkas Yaakov 4:17; Minchas Yitzchak 5:32; Az Nidberu 2:30; Machazeh Eliyahu 65:24.
Weekly-Halacha, Text Copyright © 2010 by Rabbi Neustadt, Dr. Jeffrey Gross and Torah.org.
Rabbi Neustadt is Rav of Young Israel in Cleveland Heights. He may be reached at 216-321-4635.