A man goes to a bar with his dog. He goes up to the bar and asks for a drink. The bartender says, "You can't bring that dog in here!"

The guy, without missing a beat, says, "This is my seeing-eye dog."

"Oh man, " the bartender says, "I'm sorry, here, the first one's on me." The man takes his drink and goes to a table near the door.

Another guy walks in the bar with a Chihuahua. The first guys sees him, stops him and says, "You can't bring that dog in here unless you tell him it's a seeing- eye dog."

The second man graciously thanks the first man and continues to the bar. He asks for a drink.

The bartender says, "Hey, you can't bring that dog in here!"

The second man replies, "This is my seeing-eye dog."

The bartender says, "No, I don't think so. They do not have Chihuahuas as seeing-eye dogs."

The man pauses for a half-second and replies, "What?!?! They gave me a Chihuahua?!?"