It's pedants not pendants. Do you always spell it wrong as a sort of infuriating joke? That's a good idea actually.
I guess the thing that struck me about the perpetual motion line is how unintentionally(?) trollish it was. It invites debate. It would be better to omit it.
It's like a web form that asks your email address followed by "We never ever sell your personal information to anyone!!11!" It raises a question I wasn't even considering and now I'm not sure I trust it! http://goo.gl/PaXG5g