LOL, Grinity!
First day, DS forgot to bring home his binder with all the paperwork I needed to fill out. I do give myself a pat on the back for just calmly saying alright, bring it home tomorrow and letting it go. DS was in a lousy mood because he was going to have to stay in for recess for not having the filled out paperwork. It turns out his teacher didn't make him stay in for recess and he did bring home the binder the next day.
My mantra this year is calm, both with Ds and the school

Hope things are going well for you and your family!