...welding...
Yeah dude, it's totally possible to get electrocuted while welding. Some welders use flame (oxy-acetylene welders) and some use electric current (MIG and TIG welders). If you touch the wrong thing to a wrong spot, electrocution.
In highschool I took a metal shop, and the MIG welders are in this little enclosed space, and there's like this metal "table", and you use this clamp thing to hold onto the metal rod that will be melted, and you hook another clamp (they are like the clamps you use for jumping a car battery) to the table. The most dangerous and crazy part is that it's SO dark with the mask on that you can't see what you're doing without the bright light of the welder, so you can like tap on the table to see where your joint is. Anyway the dangerous part is that you will usually switch the machine on, then position your rod close to your weld target, then put your mask down, and go to town. Sometimes you will accidentally touch the table or something and get BRIGHT FLASH LIKE THE SUN and it's fucking awful.