Shut SMS #48

Rabbi Aviner answers hundreds of text message questions a week. Some appear in the parashah sheets "Ma'ayanei Ha-Yeshu'ah," "Olam Ha-Katan" and "Be-Ahavah U-Be-Emunah." Here's a sample:
Q: Is it permissible to hire a builder who does not pay taxes to expand our caravan in an outpost?
A: No, we do not perform a mitzvah through a transgression.
Q: Is it permissible to write Lashon Ha-Ra in my personal diary?
A: Yes, but you must be careful to judge people favorably.
Q: How does one immerse an electrical appliance in the mikveh when it can be ruined?
A: Immerse it and dry it with a hair-dryer.
Q: Is it permissible to visit the Temple Mount?
A: No, there are signs from the Chief Rabbinate which forbid it.
Q: I am renting an apartment and am not sure the mezuzot are kosher. Do I have to replace them?
A: Put up your own mezuzot and then put the others back when you move out.
Q: Is there are importance to davening with a minyan?
A: Certainly. Kitzur Shulchan Aruch 12:7.
Q: Ha-Rav wrote that "Amen Meals" are a new creation. Is it permissible or is it reciting blessings in vain?
A: There are some who forbid it for this reason, but you may rely on those who permit it. Shulchan Aruch, Orach Chaim 6:4. Sha'arei Teshuvah #6. Mishnah Berurah #13.
Q: Is it forbidden to touch one's grandmother?
A: No, she is like one's mother.
Q: Does one who overcomes his inclination and does not commit a sin receive a reward?
A: Certainly, sit and do not sin.
Q: Does one who eats and vomits recite Bircat Ha-Mazon?
A: No, it requires digestion.
Q: Ha-Rav wrote that the idea of someone who does not want to wear a seatbelt with the claim that he will rely on Hashem is nonsense. Why?
A: Hashem also protects us through our intellect. Mesillat Yesharim, chap. 9.