True story: I was interviewing an attorney for a position with two of my colleagues. We went out for lunch to an Italian restaurants and we offered each other tastes of our various orders. My interviewee joined in and offered something -- I stretched my arm across the table and picked it up with my fork. While I was chewing, my colleagues saw the shocked expression on his face. For some reason, he didn't accept our offer. (I learned my lesson, now I pass my bread plate for donations.)