At the LAGT 2003, my guard were battling against Necrons. One of my front infantry buffer squads gets whittled down to a single trooper with a missile launcher. On my turn, with a Monoloth looming right in front of him, he makes his All on your own test, takes aim, and rolls 6 to hit, 6 to glance, 6 to destroy the monoloth! It was a beautiful moment.
On the necron player's turn, the necrons ignores the single trooper, so on my turn, I roll the all on your own test again, and he fails and starts retreating. I guess he figured his job here was done, and he was going home to get his medal!