One day, a man walks into a bar with a giraffe. They both sit down and the man orders a beer for himself and a tall glass of water for the giraffe.
The bartender, amazed at the sight, asks the man what the giraffe is doing there. The man replies, "Oh, he's my pet. We do everything together."
The bartender nods in understanding and goes back to serving other customers.
A few hours pass and the man and his giraffe are still sitting at the bar. The giraffe suddenly keels over and falls to the ground. The man starts panicking and yells for help.
The bartender rushes over and asks what happened. The man tearfully explains, "I think he drank too much water. He's never been able to hold his liquor."