An old snake goes to see his doctor

An old snake goes to see his doctor.
He says, "Doctor, I need something for my eyes. I can't see well these days". The doctor 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.

The doctor says, "What's the problem? Didn't the glasses help you?"

"The glasses are fine doc. I just discovered I've been living with a water hose the past 2 years!"