A lesson I learned years ago when I used to pump septic tanks. Last night I was skining out a rather musky Tom bobcat. I was trying to get as much eyelid as possible and punctured the eyeball. It sprayed my right in the lips and chin. I realize its probably harmless but I gave myself a good wiping off with alcohol. A friend was gutting out an elk that had set overnight and punctured the stomach. He unfortunately had his mouth open and got a green mouth wash. So keep them lips sealed.