I Can Bite My Eye

A man walks into a bar has a few drinks and asks what his tab was. The bartender replies that it is twenty dollars plus tip. The guy says, "I'll bet you my tab double or nothing that I can bite my eye." The bartender accepts the bet, and the guy pulls out his glass eye and bites it.
He has a few more drinks and asks for his bill again. The bartender reports that his bill now is thirty dollars plus tip. He bets the bartender he can bite his other eye. The bartender accepts knowing the man can't possibly have two glass eyes. The guy then proceeds by taking out his false teeth and biting his other eye.

Seeing Eye Dog

A blind man with a seeing eye dog at his side walks into a grocery store. The man walks to the middle of the store, picks up the dog by the tail, and starts swinging the dog around in circles over his head.
The store manager, who has seen all this, thinks this is quite strange. So, he decides to find out what's going on. The store manager approaches the blind man swinging the dog and says, "Pardon me. May I help you with something."
The blind man says, "No thanks. I'm just looking around."

Patient to the eye doctor: "Whenever I drink coffee, I have this sharp, excruciating pain."
"Try to remember to remove the spoon from the cup before drinking."