Once I had a Challenger that I had at a show. I went to get something to eat, came back and there is a guy standing over my engine bay. In his hand he has the caps from my Mopar reproduction battery. He says "you know, the vent holes in these caps are wrong, you should drill four concentric holes around the center hole to have these be more accurate." My only comment that I could come up with as my mouth hung wide open..."who are you and why are you taking my car apart?"