Thanks for the advise. I decided that, if unavoidable, one beer is the limit. No more, and no other alcoholic drink. Otherwise I am really going to preach. I can imagine your situation to be complicated as well. Actually I had a similar situation two years ago with my uncle putting my parquet floor in my new house without asking anything in return, except for a meat snack from a junk food store. So, even it was hard, I bought it, because, considering the situation, I didn't feel in the position to refuse. Now, however, I wouldn't do the same. With meat matters, I am not going to make any compromises anymore, but will boldly explain my reason.