The Ultimate Flesh-eating Lizard was of course Richard Nixon--

If he had the power to morph into human shape, as shape-shifting lizards are reputed to have the ability to do, he could not control it.  He was as he was. One develops a certain sympathy, I hear, when one lives and moves among our aristocracy, for those who are put-upon by Characters they can't very well not speak to. God he was a vulgar man. And people still don't know it.