He did - I'm pretty sure the mob boss the Sheriff of Rottingham met with in 'Robin Hood: Men In Tights' was Don Giovanni, I forget the name of his goons, either the first one (the big lug who says very little but has an unbelievable collection of archery medals) or the second one who 'says nothing at all' because 'my enemy cut out his tongue'.
My hero. Started out diffusing mines close enough to the Nazi front he could annoy them with his singing. Who the hell goes from that to re-defining comedy for a generation?
Mel played music during the Battle of the bulge from a speaker he hung on top of a pole, you could hear the Germans laughing start of the music, to it to a tutor goodbye