Battery drains only when car is running... Help

I would like to see an explanation of just how a person could accomplish that feat right there.

No problem chief! Here is how you do it:

See, you just pull the battery cables off at high idle for a bit. It helps if you connect / disconnect them for a few cycles. Bonus points if you manage to burn out a few light bulbs.

When you are finished, the alternator has a few blown diodes. If you got lucky, they failed shorted & the alternator will draw as much as 50 amps from the battery. If the diodes fail open, the field winding will still draw about 4 to 5 amps, helping to suck battery dry.

Now, once you kill the battery with the "reverse charging" alternator you can charge the battery with a 110v charger overnight. After you do this a few times, the battery will become a little easier to suck dry - probably only have about 10 minutes of capacity eventually.

See? easy. Rape the entire charging & storage system. No problem.

.