I work in an office at a bank. This morning, while surfing VZi (obviously very busy) I took the cover off the underside of the mouse to clean the crap out to stop the cursor jumping around the screen. Anyway, the rubber ball thing fell straight out & I thought went up my sleeve (I am wearing a suit). Anyway, I couldn't find it, looked around the floor/office without trying to attract attention, & couldn't find it anywhere. So I nicked another mouse from someone elses desk & forgot all about it. I've just been to the toilet, about an hour later, & found the rubber ball - IN MY PANTS! Must have worked its way all the way down.