I love the whole full moon thing. There is a lot of epidemiological data showing things such as increased emergency room visits. But, there is no scientific data that the full moon does anything. It's rare to see so much compelling evidence for something and yet a complete lack of evidence at the same time.
We had a 27 lb cat when I was a kid (I'm not joking, it was both huge and fat), it loved my mom, rode wrapped around her shoulder all day everyday. The few times it couldn't find her and settled for me were painful, I don't know how she put up with it, except the cat was tenacious and wouldn't let you get rid of him. It was easier to just let him ride around on your shoulder than to have him try to crawl up your leg, or, worse, jump from somewhere and land there.
Anyway, 3 days/month, around the full moon, he was placed in the guest bathroom and death to anyone who went in there, no one ever did.
On a full moon he would suddenly attack my mom - literally going for the jugular. He did it a couple of times in her sleep and a couple of times when draped around her shoulder, always on a full moon. The second time his attack sent my mom to the emergency room, the 3 days/month bathroom was decreed. He lived a surprisingly long time, and this schedule was maintained for about 10 years.