One day Tom's friends at Meso invite him to Tracy's bar. "You're going to love this place!".
So Tom's having drink and one of his buddies says "Go into the back room, there's a barrel with a hole in it. You know what to do."
So Tom goes back there, comes out a few minutes later with a big smile on his face and says "Oh my god, you were right, this place really is great!".
He comes back night after night, always leaving very happy.
He raves about how great the place is, but a few guys whisper he should be careful or stay away, and he mocks them, saying they're idiots.
So Tom makes his usual stop and over a drink with his friends at the bar says "Guys, I want to thank you, Tracy's Bar is fantastic!"
They all start laughing.
"What's so funny?" Tom asks
"It's your turn in the barrel tonight."