I feel like I did a pretty good job of keeping as calm as possible, while making sure that he understood just how completely fucking mad I was...which was not easy, as i was beyond livid. I hope I set some things straight about what was and was not acceptable. My only threat in there was that, if this kind of thing continued, I was not going to bother trying not to be angry and that he did not want to see me that way...nor did I want to be that way.
I just dunno. It's not the age, it's that he truly just doesn't think or remember things. Anything we can do as a reminder still requires him to do it, or to remember what that's a reminder to do.