Here is a joke about an old snake that went to see a doctor. Although it is just a short joke, it made me laugh. It has the punch line that we all look forward to when reading a joke!
"Doc, I need something for my eyes...can't see 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, I just discovered I've been living with a water hose the past 2 years!"