I have almost 3 years of giving the over 60 pilots grief. Never ever ask them if they want ANYTHING: water, food,newspaper, etc. When they approach in ops stop any conversation. Wait til they shuffle onward and continue the previous pleasantries with other crew. Nothing says I have to be friends with these guys. The minimum is what they get from me and most of the other guys I work with.
Whenever, they make any type of complaint, it is my duty to remind them they should be in a retirement home instead of an airplane. If they don't like it here they should quit. Too hot on the crew bus: quit, too noisy in hotel:quit, too long of a trip: quit, too hard of a commute: quit.
These guys should thank their lucky stars they were able to jab the entire industry with their deeds. The sooner they are gone the better. In the meantime, "can I NOT get you anything?