Probably for the best. I'd still keep an open mind about them, but I don't think you should get an animal you already are afraid of. That fear leads to bad decisions and erratic movement, and would make an animal that could possibly turn a possibly calm animal into the very demon you fear! I've seen it happen with dogs, birds, cats, and snakes, and I have no doubt it could happen to a lizard. If you don't trust it or trust yourself with it, I wouldn't add it to your home!

Good luck with whichever you choose!