YAY! Now I don't regret that extravegant tip. Although perhaps I should have also documented the unusually vigorous road-rage that happened a bit later in the ride, when the guy mumbled, "Stupid stupid stupid stupid stupid" under his breath for a solid 5 minutes, only pausing in order to yell at passing cars. Oh, and his last words to me were, "You don't worry about me, honey. I've lived a long life." Touching, no?