Let's say that a hippy put 6 quarts of oil in his/her 350. Theoretically, what seal would leak said oil out- front main, rear main, pan, valve covers...what?

Not that I did this....and then replaced my oil pan gasket 3 times...and then replaced my front main 2 times....and then replaced my pan, timing cover, pan gasket, timing cover gasket, timing cover seal, and harmonic balancer...and the whole time refused to stop filling it back up with 6 quarts. I'm just posting this question for a bud.

Thanks....for helping him figure this out.
-B.