If I throw a ball and suddenly it stops, contrary to what I expect, I don't go "oh, I guess the ball just stopped of its own accord, naturally," I go, why the h

If I throw a ball and suddenly it stops, contrary to what I expect, I don't go "oh, I guess the ball just stopped of its own accord, naturally," I go, why the hell did it stop?" and look for reasons. Who knows, maybe it really did just stop naturally, but maybe it was something else (wind.. hit something.. ball burst creating a backwards force..)