when i was growing up the family that lived across the street from me had a pool right behind their garage. the accelerator stuck on their car with their mom driving and she went through the wall and straight into the deep end of the pool. one of the two boys that was my age said they remembered thinking, 'what the hell is mom doing', when the car started to burn rubber in the garage right before it went thru the wall.
she was alright, but one of the boys did jump in the pool (i think it was in early spring? not sure, but the pool was not open) to save her.