Inspired by this question (perhaps even a duplicate). From the Talmud (Shabbat 156b) (Soncino Translation): From R. Akiba too [we learn that] Israel is free from planetary influence. For R. Akiba ...
Inspired by Shmeryl's frequenting of McDonalds, I have a similar question about lashon hara. Let's say Shmeryl is coming to visit you from out-of-town on shabbat, and has no problem with doing so ...