I keep a bottle of Dawn on hand anyway. Used as a dog and/or cat shampoo, it kills fleas. I use it even when I don't see any, simply because I have three animals that are allergic.I saw my dog playing with my little black cat and then felt my little black cat rubbing my leg. Yep Pepe LePew. Vet said use Dawn dishwashing liquid as fast as possible as skunk spray is oil based. It worked pretty well and she only smelled vaguely skunky for a few days. Moral to the story, buy Dawn when you get the trap. Oh and don't play with black cats.