I hadn't heard this one before, so sorry if it is old:
One morning, three Steelers fans and three Browns fans were in a ticket counter line at a train station. The three Browns fans each bought a ticket and watched as the three Steelers fans bought just one ticket. 'How are the three of you going to travel on only one ticket?' asked one of the Browns fans.
'Watch and learn,' answered one of the Steelers fans.
All six boarded the train and the three Browns fans sat down, but the three Steelers fans crammed into a toilet together and closed the door.
Shortly after the train departed, the conductor came around to collect tickets. He knocked on the toilet door and said, 'Ticket, please.'
The door opened just a crack and a single arm emerged with a ticket in hand. The conductor took it and moved on.
The Browns fans saw this happen and agreed it was quite a clever idea. So clever they decided to do the same thing on the return trip and save some money.
That afternoon when they got back to the station, they bought a single ticket for the return trip and watched, while to their astonishment, the three Steelers fans didn't buy even one ticket.
'How are you going to travel without a ticket?' asked a perplexed Browns fan.
'Watch and learn,' answered the three Steelers fans in unison.
When they boarded the train, the three Browns fans crammed themselves into a toilet and the three Steelers fans crammed into another toilet just down the way.
Shortly after the train began to move, one of the Steelers fans left their toilet and walked over to the toilet in which the Browns fans were hiding.
The Steelers fans knocked on the door and said, 'Ticket, please.'
This just further explains why the Browns have never won a Super Bowl.