BAM! That dynamite aint gonna work too well when it's wet.
You know, I worry about the day someone here at work happens to click on my Firefox history and sees all the things I search for in googleimage.
EDIT: Damn you quick-fingered snuzi! I suppose that moisture lowers the body's resistance and increases the speed (thus reduces the painfulness) of the electrocution. That's what the book of The Green Mile taught me, at least.