My kid went to public school in Canada. He learned English pretty quickly and one day got suspended from school for a week. When I asked what had happened he said the other kids asked him to pronounce f.u.c.k. and then, after he complied ran to the teacher to say that he'd used a 'bad word'.

So, the principal, one Roman Peredun calls me up and says that my son used a bad word. I asked him what word. He wouldn't say it. So I asked how am I supposed to know how 'bad' my son is if you can't even repeat the word. He then spelled the word. I said, oh, 'fuck'. Yes, that's not in dutch however so he must have picked it up in your school. Peredun hung up and I sent my kid back to school the next day.