A brunette, a redhead and a blonde do a survey. One of the questions is “How do you tell when you’ve had a really good night out?”
The brunette says “If I feel exhausted when I get home, then I know I’ve had a good night out.”
The redhead says “If I feel hung over next morning, then I know I’ve had a good night out.”
The blonde says “If I take off my knickers when I get home, then throw them at the wall and they stick there, then I know I’ve had a good night out.”