An old snake goes to see his Doctor. "Doc, I need something for my eyes, I can't see very well these days," he says.
The Doc fixes him up with a pair of glasses and tells him to return in 2 weeks. The snake comes back in 2 weeks and tells the doctor he's very depressed. Doc says, "What's the problem? Didn't the glasses help you?"
"The glasses are fine doc," replies the snake.
"But I just discovered I've been living with a water hose the past 2 years!"