A little tangent, but gratitude will always be a sign for good manners. Nothing pisses me off more than people who are rude with other people serving them (bar

A little tangent, but gratitude will always be a sign for good manners. Nothing pisses me off more than people who are rude with other people serving them (bartenders, waiters, stylists, maids, ...); whenever I spot that kind of behavior on people who are close to me (coworkers, acquaintances, even dates, ...) they go straight to a bucket of people who I maintain the minimal necessary contact with.