Not me, but I was working on an old Ford Falcon back in the 60's with a friend wearing a watch with an expandable metal band. Somehow he got the band to touch both the positive post of the battery and the chassis. It welded itself to each end and carried so much current that it burned it's way into my friend's arm. He has a permanent scar on his wrist in the shape of an expandable watch band.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13