I remember once, when i was taking swimming, we had to do something like 5 or 6 lanes(the big ones) of freestyle back and forth. I noticed that just about everyone was done when i was on my 4th of 6th(or whatever it was) and i just suddenly sped up(though i was totally pooped out) and i finished before some people.
Also one time in a soccer game, i kicked a free kick from like, 40 yards maybe? it went nice and high and far, and basically right to the goalie, but somehow it bounced throw his legs and slipped his grip :D . Quite amazing.