For those of us who have played the original episode of half-life 2, we know of a single item that can be picked up with the gravity gun that is vastly superior to the radiators in nova prospekt, the saw blades in Ravenholm, and the cinderblocks that are scattered all over the place. This item appears in the conclusion of the level "sandtraps" as you are working your way up the cliff face towards Nova Prospekt: two boating spars, along with a boat, a charred carcass, and a couple of zombies.

Now, most of the time you use this on the zombies, have a quick laugh, and forget about it. However, I took that a step further and carried the thing all the way into the level to the point where there are two turrets guarding the Laundry room in the prison.

In the shower house, you can use this on the Bull antlion that busts through the door. It will 1-hit-KO him, and, if you're lucky, hang him from the wall like some sort of trophy. Continue along, turning comine soldiers into shish kabobs (if you're lucky, you can get two at once). However, the real glitch is still to come...

Use this spar on the turrets. They will die, and so will the current game session. Why? because of the way that the spar works. When the spar hits something, it dies automatically. The turrets, by definition, can't die. The result? Your game starts hemmorhaging and pop goes the application.

Try it, you'll like it.