A guy walks into a bar with a dachshund under his arm. The dog is wearing a Detroit Lions jersey and helmet, and is festooned with Lions pom-poms. The bartender says, "Hey! No pets are allowed!  Sorry, but you'll have to leave."

The guy begs him...

"Look, I'm desperate!  We're both BIG fans, the TV's broken at home, and this is the only place around where we can see the game."

After securing a promise that the dog will behave, and warning him that he and the dog will be thrown out if there's any trouble, the bartender relents and allows them both to stay in the bar and watch the game.

The big game begins with the Lions receiving the kickoff. They march down-field, get stopped at the 30, and kick a field goal. Suddenly, the dog jumps up on the bar and begins walking up and down the bar giving  high-fives to everyone.

The bartender says, "Wow, that is the most amazing thing I've ever seen! What does your dog do if they score a touchdown?"

The owner replies, "I don't know, I've only had him for three years."