An old snake goes to see his Doctor.

"Doc, I need something for my eyes, I can't see very well these days."

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, but I just discovered I've been living with a water hose the past 2 years!"