Usually get stuff purporting to be a German bank, on the screen it looks okay, but if you print it off, you find all kinds of stuff, other peoples names, excerpts from a book & all kinds of random things.
If I feel like it I'll fill in details such as account numbers & tans/pins with a variety of choice English expressions, (incidentally if you try putting words into an official box they're refused) that done I send them on their way at least the blagger has learnt something, usually an offensive vocabulary & my opinion of his sexual tendencies & his lineage.