Wow Irina, no need to yell at me, I will tip as I please. Also Todd you are wrong about the Doctor, Nurse, Plumber, Grocery store clerk etc. First of all you cannot compare a bartenders service to a Doctor or nurse... I give my Doctors office presents at holiday time to show my appreciation for all they do, don't know if they do this by you, but here in NY everywhere you go there is a tip cup.... ...Also Irina you have no idea what you are talking about...so please do not yell at me again. You are very rude.