Buddy was wrapping up work on my car and he was putting in a new battery. Says he barely touched the clamp to the wrong post by accident, barely sparked. Says the car now has a dead short. His research tells him that it likely toasted the voltage regulator. We started out with an alternator issue on this car and the nightmare it took to get to it. The idea we have to do this again is an awful thought. Any input here? Could it be something else?