Three Packer fans and three Viking fans are traveling by train to the Pro Football Hall of Fame. At the station, the three Viking fans each buy tickets and watch as the three Packer fans buy only a single ticket between them. "How are three people going to travel on only one ticket?" asks a Viking fan. "Watch and you'll see," answers a Packer fan.
They all board the train. The Viking fans take their respective seats but all three Packer fans cram into a restroom and close the door behind them.
Shortly after the train has departed, the conductor comes around collecting tickets. He knocks on the restroom door and says, "Ticket, please." The door opens just a crack and a single arm emerges with a ticket in hand. The conductor takes it and moves on.
The Viking fans saw this and agreed it was quite a clever idea. After visiting the Hall of Fame, the Viking fans decide to copy the Packer fans (as they always do) on the return trip and save some money (not wanting to be outdone by a bunch of cheeseheads).
When they get to the station, they buy a single ticket for the return trip. To their astonishment, the Packer fans don't buy a ticket at all. "How are you going to travel without a ticket?" asks one perplexed Viking fan. "Watch and you'll see," answers a Packer fan.
When they board the train the three Viking fans cram into a restroom and the three Packer fans cram into another one nearby.
The train departs. Shortly afterward, one of the Packer fans leaves his restroom and walks over to the restroom where the Viking fans are hiding. He knocks on the door and says, "Ticket, please..."