Where's my socket?

I just welded up an oil pan for a guy with a 454 Chevy that when he was changing the cam dropped a lifter and never found it, replaced the lifter, fired the engine and it spit out the side of his new oil pan like a bullet and destroyed the starter. The hole looked like it was perfectly punched. We now nicknamed him 17 lifters, he hates it gets mad! LOL it will be a long time before he lives that one down. Didn't hurt anything else, not even a mark on the counterweight! He was lucky!