Have you been CPR trained? Cause I have. It’s a very good skill to know. But... What about reverse CPR? You know, blocking the air flow. There are a couple of different tools you can use when practicing this technique. You can use one hand, two hands, or my favorite... your ass. You know, just sit your ass right on the locations your subby boy breathes. Well, at least I think it’s the most enjoyable way to practice reverse CPR. :)