very odd thing happened today. out for lunch, back on the way to school, i was going through a parking lot. i hit a small pot hole, nothing much at all, i've done much worse, and i get this loud metal screeching noise. i was like quarter mile from school and had to get back, so i drove, slowly, with this loud metal screeching coming from my back wheels. i stopped and checked it out like 3 or 4 times. thought something may have been dragging, brakes may have some problem, something like that. never saw a problem. everything in tip top shape. figured out it couldn't be the break, because when applying break the sound doesn't change, its just when the wheels move. thought i'd bring it to the mechanic down the road, but i got into it later, and it worked perfectly! i was so happy, but does anyone know what happened? what it may have been? perhaps rocks stuck somewhere?