Terry McDonald - according to Wikipedia "A klutz is a person who is clumsy, foolish, inept, or accident-prone. The term is perhaps derived from the Yiddish קלאָץ klots ('wooden beam'), cognate with the German klotz, meaning a "block" or "lump"."

Like you I didn't know what this term means. But because of german origin I do know what a Klotz is. Brrrr..., sorry for this, Guest. But I believe that your are joking, wasn't you?

Manfred