The AK47 at 0.45s is a particularly insane example in a whole bunch of idiocy.
I think the .50 on the humvee just after stands out most for me. I don't know about the yank's version of it (I would assume its fairly similar to ours though), but IIRC you couldn't cock our .50's with the barrel half locked. This means the bloke has more than likely been
ing about with the barrel with ammunition still in the chamber!!