LMAO!
This reminds me of the time my friend was trying to beat through Halo 1 on Legendary, and on the part where you have to fight through all of the Flood, then go up into the Covenant ship, he got a checkpoint right as one of the exploding Flood laid down, then exploded and he would die. As SOON as he would restart the checkpoint, it was already on the ground, he'd see it explode, and he would die. I thought it was hilarious, but he didn't. He had to restart the entire level.