My old school had some link with a school in Germany and we did exchanges between them every few years. So people from our school went to live with people in Germany and then they came to live over here in the UK with the other family. So we had this wave of Germans in, and one called Yanis I think, we (our year) taught him all our swear words and rude hand signals.

We all loled so hard when we'd hear him say them.