Wait.
None. They wait for the electrician to make a mistake and yell at them for doing it wrong.
Oh wait, there is.
A Ford.
Mine is the Ford F Series.
It didn't protect him from harmful rays Edit: Steve Irwin was the man. RIP
A nun with a javelin in her throat. (The only joke I can ever recall when asked for one. Told to me by my art teacher in Grade 11. Needless to say, he was my favourite teacher)