An old man walks into a bar and orders a drink.
“May I see your ID please?” The bartender asks.
“You’ve got to be kidding,” he said. “I’m almost 60 years old.”
The bartender apologised, but said he still had to see the license.
The man showed his ID, then paid and told the bartender to keep the change.
“The tip’s for carding me,” he said.
The bartender put the change in the tip cup. “Thanks,” he said. “Works every time.”