I'm not aware that anyone's ever complained about my attitude (well, not since I left school, anyway...) - which is rather fortunate given my default setting for dealing with just about anything is a sort-of dry humour coupled with a tendency to be a more than a bit direct, and a refusal to treat anyone differently based on their position in the company. However, it has transformed previously awkward customers into pleasant-to-deal with ones, and got me more than a few thank yous in the form of chocolate! (And the nickname from an ex-colleague of "headmistress"
)