Not quite 'on thread', but I had such a laugh yesterday when I was asked to write in a birthday card for a Finnish colleague.

I went in to a translator site and asked for a translation for 'you may be old but you're still my favourite Finn'. After I'd written the result in the card I thought I'd check it back so put the Finnish phrase in and asked it to translate it back to English. It came back as 'you may be old but your acne is still my pet'!

I twigged then that, of course, the Finnish word for Finnish is Suomi - 'finn' in Finnish means spots.

Beware the Babelfish!!