“A guy walks into a bar…” is a typical form of what has been called the “bar joke.” “A guy walks into a bar with his pet dog” is a popular joke. The dog does flips when the bar’s television shows that a football team (several teams have been included in the joke) scores field goals. “What happens when the team scores a touchdown?” the bartender asks.  “I don’t know. I’ve only had him for seven years!” the bar patron replies.
 
The joke has been cited in print since at least 1998 (when the New York Jets were the team that was watched). A similar joke involving the Toronto Argonauts apparently was told in 1980 (see the 2013 citation, below).
 
 
Google Books
Want to Go Out for a Bite?:
Marv Albert’s Favorite Pick-Up Line and Other Jokes from the Headlines
By Tim Harrod
Kansas City, MO: Andrews McMeel Publishing, LLC
1998
Pg. ?:
A guy walks into a bar with his pet dog.
 
The bartender says, “No pets allowed.”
 
The man replies, “This is a special dog. Turn on the Jets game and you’ll see.”
 
So the bartender, anxious to see what will happen, turns on the game.
 
The guy says, “Watch. Whenever the Jets score, my dog does flips.”
 
The Jets keep scoring field goals and the dog keeps flipping and jumping.
 
“Wow! That’s one hell of a dog you got there! What happens when the Jets score a touchdown?”
 
The man replies, “I don’t know. I’ve only had him for seven years!”
     
ClutchFans
Put Your Oakland Raider jokes right here…
PhiSlammaJamma
01-08-2003, 06:25 PM
A guy walks into a bar with his pet dog. The bartender said, “Sorry. No pets allowed.”
 
The man replied, “This is a special dog. Turn on the Raiders game and you’ll see.”
 
The bartender, anxious to see what will happen, turned on the game.
 
The guy said, “Watch. Whenever the Raiders score, my dog does flips.” The Raiders keep scoring field goals and the dog keeps flipping and jumping.
 
“Wow! That’s one hell of a dog you got there. What happens when the Raiders score a touchdown?”
 
The man replied, “I don’t know. I’ve only had him for seven years!”
   
MLB.com
angelbabe1
1/23/03 2:05 PM
A guy walks into a bar with his pet dog. The bartender said, “Sorry. No pets allowed.”
 
The man replied, “This is a special dog. Turn on the Jets game and you’ll see.” The bartender, anxious to see what will happen, turned on the game.
 
The guy said, “Watch. Whenever the Jets score, my dog does flips.” The Jets keep scoring field goals and the dog keeps flipping and jumping.
 
“Wow! That’s one hell of a dog you got there. What happens when the Jets score a touchdown?”
 
The man replied, “I don’t know. I’ve only had him for seven years!”
   
Google Books
Bouncing Back:
From National Joke to Grey Cup Champs
By Paul Woods
Lulu.com
2013
Pg. 7:
Did you hear the one about the spectator at the Toronto Argonauts football game who saw a dog crying in the grandstand?
 
“That’s incredible,” says the man to the dog’s owner.
 
“Yeah,” says the owner, “he always cries when the Argos lose.”
 
“Well, what does he do when the team wins?” asks the man.
 
“I don’t know,” says the owner, “I’ve only had him for seven years.”
(Andrew H. Malcolm, New York Times, Dec. 7, 1980)
   
jokeswiki
steeler jokes
Posted on April 6, 2014
by admin
(...)
A guy walks into a bar with his pet dog. The bartender said, “Sorry. No pets allowed.”
The man replied, “This is a special dog. Turn on the Browns game and you’ll see.”
The bartender, anxious to see what will happen, turned on the game.
The guy said, “Watch. Whenever the Browns score, my dog does flips.” The Browns keep scoring field goals and the dog keeps flipping and jumping.
 
“Wow! That’s one hell of a dog you got there. What happens when the Browns score a touchdown?”
The man replied, “I don’t know. I’ve only had him for seven years!”
     
The Times of Wayne County (Macedon, NY)
Best sports jokes for any occasion
November 22, 2014
(...)
One Sunday afternoon, a guy walked into a bar with his pet dog. The bartender said, “Sorry, pal. No pets allowed.” The man replied, “This is a special dog. Turn on the Jets game and you’ll see.” The bartender, anxious to see what will happen, turned on the game. The guy said, “Watch. Whenever the Jets score, my dog does flips.” The Jets keep scoring field goals and the dog keeps flipping and jumping. “Wow! That’s one hell of a dog you got there. What happens when the Jets score a touchdown?” asked the bartender. The man replied, “I don’t know. I’ve only had him for seven years.”