CPR dummies are gross. You have to put your mouth all over them, so they have detachable faces, and they are floppy and freaky looking, and everyone in your CPR class will be carrying around their own personal disembodied squishy peach face, which has their spit all over it from all the blowing.

Did you know that CPR doesn't really restart the heart? Defibrillation is what does that. CPR will just attempt to keep the blood and oxegyn circulating until the paramedics get there.