Let me admit up front that science was never my strong suit. I'm definitely a liberal arts chick.
But when I read this example of electricity on Cracked.com....well, I cracked up.
Even I understand it now.
If you're not familiar with how electricity works, let's briefly go over it. Electricity is just a flow of electrons from some place that has too many of them to some place that really wants them. But where they really want to go is to the ground. If generated power is a shipload of sailors on shore leave, the ground is a whore house that's having a two-for-one special.
For equally funny bits, go read the whole article...
5 Things That Aren't Nearly As Dangerous As Everyone Thinks" #2 Bathtub Electocution