Anyone that follows my comments knows i have a thing about Cuban Tree Frogs. Thats how I got the idea for Critter Quitters, my wife found one in our toilet and I discovered they come down the vent. They are slimy, sticky, and jump like crazy. Here is a picture of one i found sitting on our pool equipment control box the other night, just waiting to jump in. Dont let these things get in your toilets, get some Critter Quitters.