When waiting for drunk people, they typically want a decent fare, since some people only go about 10 blocks, and if its a popular club, they've been waiting in the cab line for like a half an hour, so they want to guarantee some sort of fare..
They also have dashers to deal with...
I've always had a decent outcome with 777..77..77? but one time a guy didn't give me change when I asked for it, or a receipt as well