 A tank commander is what they were called. And I was responsible for everything that happened on that tank. If it broke down, there better be grease in there. Because the first thing you do is check if you had the grease gun. Not that I had to do it. I had to make sure this man did it. And if he didn't do it, I was responsible for it. So we were responsible for anything that broke on that tank. No matter if the other guy caused it, you're responsible for not stopping him from doing it.