Title: Engineers vs. Accountants

Three engineers and three accountants were traveling by train to a
conference.  At the station each of the three accountants bought a ticket but
noticed that only one of the engineers did so.

"How can three people travel on only one ticket?" asked an accountant.

"Watch and learn," answered one of the engineers.

They all boarded the train.  The accountants took their respective seats, but
all three engineers crammed into a restroom and closed the door.  Soon the
conductor came around collecting tickets.  He knocked on the restroom door
and said "Ticket, please."

The door opened just a crack and a hand emerged with a ticket.  The conductor
took it and moved on.

The accountants took this in and agreed that it was a clever idea.  After the
conference, they decided that they too would save some money on the return
trip.  When they got to the station, they bought only a single ticket for the
return trip.  To their amazement, the engineers bought no tickets at all.

"How can you travel with no ticket?" asked one perplexed accountant.

"Watch and learn," answered an engineer.

When they boarded the train, the three accountants crammed into one restroom
and the three engineers wedged into another nearby.  As soon as the train was
out of the station, one of the engineers left his restroom and walked to the
restroom where the accountants were hiding.  He tapped on the door and said
"Ticket, please!"