All went home safe, no one was hurt, just surprised (or would that be 'shocked')? 
While there are a lot of really good maintenance people out there, there are also a lot of them that should not be working on certain things, as you probably know. It's amazing that more things don't go wrong, causing injuries or even fires with some of the stuff like this that gets done in commercial buildings by people that just don't know any better. That wasn't the first thing like that we ran across in 37 years. Luckily I retired soon after that, still all in one piece.
