Yeah, I got more toads than I know what to do with. Vacant house next door has a small pond in the backyard, and they breed like rabbits. They love it in the spring when I put spaghum moss on newly repotted trees - they burrow under the moss. Generally not too big an issue on bigger trees, but if there's no moss then they'll try to wiggle little "caves" for themselves in the soil itself. Then events like yesterday happen, when I pick up a pot and suddenly have a toad jump on my chest.
Thankfully, I have enough of a "save the bonsai" reaction that no trees were harmed when I jumped out of my skin.
Yeah, gotta love the squirrels. Took me a few minutes the first year I had acorns sprout in my bonsai pots to figure out how they got there. Most everything else that sprouts gets put there by the wind, I couldn't figure out how an acorn had gotten blown in and buried.