Three lawyers and three MBAs are traveling by train to a conference. At the station, the three lawyers each buy tickets and watch as the three MBAs buy only a single ticket. "How are three people going to travel on only one ticket?" asks a lawyer. "Watch and you'll see," answers an MBA.

They all board the train. The lawyers take their respective seats but all three MBAs cram into a rest room and close the door behind them. Shortly after the train has departed, the conductor comes around collecting tickets. He knocks on the rest room 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 lawyers saw this and agreed it was quite a clever idea.

So after the conference, the lawyers decide to copy the MBAs on the return trip and save some money (recognizing the MBAs superior intellect).

When they get to the station, they buy a single ticket for the return trip. To their astonishment, the MBAs don't buy a ticket at all. "How are you going to travel without a ticket?" says one perplexed lawyer. "Watch and you'll see," answers an MBA.

When they board the train the three lawyers cram into a rest room and the three MBAs cram into another one nearby. The train departs.

Shortly afterward, one of the MBAs leaves his rest room and walks over to the rest room where the lawyers are hiding. He knocks on the door and says, "Ticket, please."