Originally Posted by
codex57
Tipping is predicated on service positions and to induce service people to give you additional attention beyond the bare minimum. Bribing is for gov't agents who are supposed to be neutral, but a bribe will induce them to do things you want which may not be legal.
This is not true.
Any up-front payment, such as to jump a line at a nightclub (or to get in at all), or to get a better room in a hotel, is a bribe. A tip is a means of thanking for good service already received.