1. Waking with a 25-year-old woman you've never seen before who appears to have died overnight from stab wounds inflicted by a knife with your fingerprints on it, making it necessary for you to elude the police while tracking down the true killer who set you up.
I could go on.
Recently we were having drinks with a somewhat older friend of ours, a professor, and her boyfriend, who accused her of having a crush on one of her undergraduate students. Indignant, she replied, "I don't have a crush on him, he's twenty!" Anyway.