“You can be bribed by one dollar???? You must be a cheap date. Omygosh. Please tell me you don’t have children.”
You don’t understand the dynamics of tipping.
Are you going to mandate that each and every passenger tip exactly one dollar?
Then that is not a tip, it is a mandatory fee.
Occasionally a server or bartender will point out a regular who is a lousy tipper or doesn't tip at all in which case they don't get my best.