I rarely tip. Very very rarely. It's so rare that I receive service that's tip-worthy anyway. I was in the States a last month with work and in America it's expected to tip. Naturally I would make a point NOT tipping due to the expectations. You're not getting fuck all Betty Sue unless I see them teeth smiling and a spring in that step. Here in Britain it's not expected ... or if it is, I wouldn't notice anyway. In Europe, Slovakia and Hungary especially I remember, being a water seems to be a career choice so it's incredibly professional without being overbearing. I always tip.