Fascinating. I haven't tried mushshrooms, but I heard they taste very bad. Anyway, I know a fellow who has a bug-zapper in his honey house to kill the bees...those little fellows go right for the light. At night I have some bees on the window, I do love them very much, but I no longer love them individually. I learned a valuable lesson the first year I tried to save the ones that fell in the snow. You just have to let some go... I also learned that those little frozen buggers come right back to life when you warm them up! (sometimes :) ) So I'm sure your been will be fine on your window overnight.