Are We Having Fun Yet?

I know what you are talking about. It may be that folks just think you know and don't necessarily work at whereever. Or you seem more approachable than the actual staff. I was on a business trip once, at a restaurant, wearing my suit and tie and as I was passing to my table on my way back from walking a colleague out, a loud man at a table demanded that I get him some water. When I said I didn't work there, he was truly annoyed. I like to be helpful, but I have limits.