It begins like this. It was TF2. I was a Pyro. Some random guy set fire to a Demoman on the custom map ctf_mach4. He ran into our base via the right entrance and started firing sticky bombs up the stairwell where I was standing above him. Our hapless Scotsman friend detonated the stickies, which brought me down to five health and blew me off of the stairwell directly at him. So, I whipped out my Axtinguisher in midair and came down on his head. Instant kill--he was still on fire. As I landed on his collapsing ragdoll, I pulled the electric guitar taunt. It was made of win.
There was another time, just today actually, on arena_offblast. It was down to me, again as a Pyro, and a Scout on the other team. We played a little cat-and-mouse for a while, with my health advantage and his speed advantage. Eventually, we brought each other down to less than thirty health. I ran for the medpills outside the main chamber, and he ran for them too. I guess he thought he'd get there first due to his speed, but he was far enough away that it didn't happen. I grabbed the pills, and with the shotgun equipped, I whipped around and pretty much blindfired into the corridor behind me. All the pellets hit him, and his corpse was blown straight backwards out into the main chamber, winning me the round. Good times.