You don't have to apologize to me every time my fines have accrued to the point where I have to pay them if I want my next book. You don't.
I'm very irresponsible. I'm the kind of irresponsible that is not forgetful, just negligent. I know when they're due. I just don't return them. Don't implicate yourself in my failures. You want to know something? I don't even implicate myself in them.
PS. The Black Prince by Iris Murdoch is unlikely to be back in your hands by November 2.