A fuuny one I remember from a few years back was the security camera footage of a late-night reveller in Sunderland who decided to smash his way into a store front by picking up a drain cover and throwing through the shop window.
Having successfully raised the heavy cover above his head, the master criminal took a couple of paces back to afford him the neccessary momentum to throw it.
Unfortunately for our Moriarty he fell down the very drain the cover was meant to be protecting and was laid there for some time with a broken leg untill the police arrived to arrest him.
I reckon he didn't have a leg to stand on!