One fine Thursday at the bar...

A man goes into a corner taproom with his German Shepherd. He goes up to the bar and asks for a drink.

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

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

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

Another guy walks into the bar carrying a Chihuahua. The first guys sees him, calls him over him, and says in a low voice, "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. Sure enough, the bartender says, "Hey, no dogs allowed in here!"

Using the advice he just received, the man says, "This is my seeing-eye dog."

"No, I don't think so," the bartender says with suspicion and annoyance. "They don't have Chihuahuas as seeing-eye dogs."

The man thinks quick and says, "What?! They gave me a Chihuahua?!"