About two months ago, (long story) I discovered that a tree frog...a very large tree frog...was stuck in the drain of my bathroom sink. I had a plumber come remove him. (Yes, I'm in central Florida!) He had never seen one, but had heard the stories. I was told that they come in through the roof vents. I used downspout inserts (for leaves) to cap them. As I was capping the main, there was a rather large one looking at me, who disappeared down the abyss. Two days ago, a small tree frog came up through the shower drain to say "Hi". I am now afraid of my plumbing. Is there anything I can put down the pipes to chase them all away??

oh my.