I should clarify. When I say "some balls," I am not talking about the same balls. That would be stupid. Most baseballs only get hit once in MLB. But even if you have balls that are hit more than once, it would be pretty rare that one would be hit in one park and then in another park. Really unusual. So, I'm not saying that if you had a ball, and that ball was hit for a home run in Fenway, that same ball would be not a home run in Petco. Because that ball wouldn't get to Petco.Let me know please.