
Its a lousy $8! I actually gave a copy to my little sister 20 years ago and she got a lot of benefit from it.
Remember, if you're not enjoying it, it doesn't matter how safe it is; its not worth the risk. Yes, you may do it for someone else, but if that person is worth doing it for, they really care that you enjoy it to. And if you're both just doing it for each other, well, that just don't make no sense at all.