Who knows a joke about Jewish cleverness that happened on the train?

I've seen it before, but I just remember it roughly. Let me tell you something:

Jews buy tickets and several people buy one ticket. When it was time to check in, several of them hid in the toilet. When the ticket inspector knocked at the door, they pushed the ticket out of the door, and the ticket inspector took it and left.

When Americans saw it, they wanted to learn from the Jews. Several people bought tickets and hid in the toilet. At this time, the Jews knocked on the toilet door before the ticket inspector came to check the ticket. The Americans in the toilet also squeezed the ticket out of the door, and the Jews took the ticket and left ... haha.