The Gemara writes that a Talmud Chacham should not wear cologne. Does this apply nowadays? I've personally smelled a Rosh Yeshiva's strong scent of cologne.
We learn in Shulchan Aruch Orach Chaim 178 the laws if one leaves the place where they were eating if a new bracha has to be made or not when they come back (or if they change to a different place.) ...