Man with a German Shepherd dog goes into a bar and sits down at the counter. Bartender says, "You can't bring that dog in here!" Man says, "But this is a Seeing Eye dog!" Bartender says, "Well, OK, then I guess it can stay." After a while, the man and the German Shepherd get up to leave. As they're going out the door, another man with a Chihuahua is coming in. First man says, "The bartender won't like you bringing that dog in here, but just tell him it's a Seeing Eye dog and then it'll be OK." Second man looks dubiously at his tiny Chihuahua, thinks a few seconds, thanks the first man and goes on in. Bartender says "Hey! You can't bring that Chihuahua in here!" Man stares straight ahead and exclaims, "What! They sold me a Chihuahua?!"