Just I thought I should share them.

I'm not sure if this ones counts as a fail, though. I was playing Modern Warfare 2 at a friends house on Live and we were leaving before the match finished. I decided instead of just dropping out, I would suicide with a grenade so I didn't disappear. So I chuck the grenade at my feet and it went off. That's odd I though, it gave me kill. I see someone got hit by the splash enough too die when I wasn't even paying attention.

Another fail was when I was doing co-op with my cousin in world at war. We were coming up to the part early on in the campaign where there's the shelled out building full of enemies and there's a trench in front. My cousing gets close to the edge of the trench and starts picking the enemies off, which one of them threw a grenade at me. Thinking I was so clever I went to through it back but I messed up the aiming something terrible and landed it on the trench wall. Literally right infront of my cousins head. His gun was pointing out further than where the grenade landed. To be obvious, he was quite pissed at that.

And now this last one's not mine but a friend's who had come over recently. She was playing creeping rockets zombies on standoff in Halo 3 live. She ran outside which was fine, and stood near a satellite, right next to it. I point out to her that the compass shows zombies approaching her, and quite a few so she panics. She turns a full 180 to try and see them and fires blindly right at the concrete platform the satellite next to her is resting on and got a suicide. She did this several times without killing the enemy once.