This isn't something that happens often, but it does happen.
One day, I was playing CTF, and I had the enemy teams flag at their base. I needed a ride, so i stood near a warthog hoping someone will drive me away. Soon, a teammate came to the rescue! The problem was, instead of getting in the drivers seat and driving us away into the sunset, the idiot got into the turret, and we both got killed by a plasma grenade. No, sorry, that wasn't right. FOUR plasma grenades! I hope you realise that when someone is just standing around a warthog with a flag or the ball, you all will get in the drivers seat and drive the **** away from the enemy.