Three lawyers and three engineers are traveling by train to a conference.
At the station, the three lawyers each buy tickets and watch as the three
engineers buy only a single ticket.

“How are three people going to travel on only one ticket?” asked one of
the three lawyers. “Watch and you’ll see,” answers one of the engineers.

The all board the train. The lawyers take their respective seats but all
three engineers 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 lawyers saw this and agreed
it was quite a clever idea.

So after the conference, the lawyers decide to copy the engineers on the
return trip and save some money. When hey get to the station they buy
a single ticket for the return trip. To their astonishment, the engineers
don’t buy a ticket at all.

“How are you going to travel without a ticket,” asks one perplexed lawyer.

“Watch and you’ll see,” says one of the engineer. When they board the
train the three lawyers cram into a restroom and the three engineers
cram into another one nearby. The train departs. Shortly afterward, one
of the engineers leaves his restroom and walks over to the restroom
where the lawyers are hiding. He knocks on the door and says, “Ticket,
please.”….