Traveling on a Train Joke

I don't know if this one's been posted before but I had another funny joke to share. (It's always funny to hear good ones again...)

Three men on a train noticed that three women had only one ticket between them. They said, "How are you going to travel on one ticket?" One woman said, "Watch and learn."

A bit later, the three women all crammed into a bathroom and when the conductor came around, he knocked on the door and said, "Ticket please!" One single arm extended from the bathroom and he took the ticket and went on his way.

The men thought it was a clever idea after all. On the return trip, the men bought only one ticket for the three of them and noticed that the women didn't buy any.

One man asked, "How are you going to travel without a ticket?" One woman said, "Watch and learn," A while after the trip started, the three men crammed into one bathroom and the three women crammed into another. A few seconds later, one woman came out of the bathroom, knocked on the door of the other bathroom and said, "Ticket please!"