I usually give my DL or Visa as collateral when they ask, but that's very rare, if it's a packed bar or club, sure but.... maybe 1/5 times does that happen. I pay my tab (or our tabs I should say) with whatever, debit for me, and I get my DL back and we're off. No biggie there. Most times I'm there with a group and the server just keeps the tab running individually, we pay and that's that.
"The music business is a cruel and shallow money trench, a long plastic hallway where thieves and pimps run free, and good men die like dogs. There's also a negative side"