I do not believe that there are any such things as gods and goddesses, for exactly the same reasons as I do not believe there are fairies, goblins or sprites, and these reasons should be obvious to anyone over the age of ten.
I'm the most mellow person offstage. I think it's just, going onstage lets me get out some frustration that I'm too shy to do in real life. Instead of doing it in private, I'd rather do it in front of 1,000 people who've paid $25 to see me lose my mind.