Yes, these little slimy things can get into your toilets. They come down the vent and end up behind the toilet. Since they are amphibians, they simply swim through the P trap and stick to the inside of your toilet waiting to give you a nice surprise during the night. Here is a picture of one. Looks like he is eyeing your toilet. Nasty little devils. Critter Quitters stop them from entering, protect the vent, and make your roof look great. Homedepot.com and Amazon.