Originally published in Science Fiction Stories 1953 They're all around us. I'll call them the slizzers, because they sliz people. Lord only knows how long they've been on Earth, and how many of them there are.... So ... you might be one. Or your best friend, or your wife or husband, or that nice lady next door. But, sometimes a man here and there will be careless, or ignorant, or greedy ... and a maple tree will be hurt.... Think about that the next time someone is real nice to you. He may be a slizzer ... and a careless one.... How long do we live? Right. About sixty, seventy years. Sure. * * * * *