Dilbert is talking on the telephone and says, "Is this Skeptics Association? I need your help to prove my rat isn't psychic." Dilbert holds the phone and says, "My name is Dilbert. Yes, I can prove it; I have a pssport and a driver's license. Well, yeah. It's easy to get a fake ID, but..." Hours later... Dilbert is still on the phone, his hair is a mess and he says, "...Okay, what if I take a DNA test? No, I can't prove I've never been cloned!!" He's angry.