I don't think that makes any sense. Many of the objects make little sound (how loud is a q-tip hitting the ground, exactly?), you wouldn't watch the falling obj

I don't think that makes any sense. Many of the objects make little sound (how loud is a q-tip hitting the ground, exactly?), you wouldn't watch the falling object if you were expecting to flush out prey elsewhere - nor, for that matter, have I ever seen hiding animals scared out by a falling sound. (Whenever my cat has caught a mouse or other animal and it successfully hid in a crack or between the wall or under the refrigerator, it has been quite difficult to extricate the animal.)