TW: probably ableism, quite a bit of shouting at children
OK, ladies. I'm not sure you'll be able to help me with this, but you are by far the best ADHD community on the internet so I feel comfortable asking here.
My son and my husband both have severe ADHD and are most likely on the spectrum. My husband (38M, I'm going to call him Mark) grew up in a authoritarian dad / permissive mom household and was untreated until he was in his mid-thirties. He's trying to do better than his parents, and he's doing a really good job. But there are some things he has trouble reacting to calmly.
My son (10.5M, I'll call him Luke) was diagnosed with ADHD at 5 when his kindergarten teacher noticed that he needed to be in a completely quiet room by himself in order to do anything. In his Montessori classroom, he would sit in the middle of the room and stare, either at the work packet they gave him or at the other students. After several years I've come to realize that his version of a meltdown is to "check out." He is only internally motivated, and has a difficult time expressing what the problem is. I'm also pretty sure he's in PDA burnout, but I think that's a different issue.
I also have ADHD and GAD, but I have the role of NT in our house. That usually means reminding everyone not to be an a*hole and trying to set us all up for success.
OK. Now to the problem. Mark likes to keep candy, treats, ice cream, and snacks on hand, and seems to have an internal limit on "acceptable daily consumption." Luke "steals" these things by not only eating "more than his share," but by taking them without asking. Mark then loses his temper, and will shout (usually along the lines of "This is unacceptable! I've told you this is unacceptable and I am livid!") It can be especially bad when Mark has "saved the best for last" on a personal treat and Luke takes it and eats it anyway.
I have tried SO MANY THINGS to set Luke up for success here. We've tried pre-portioning to make sure everyone knows what their share is. We keep Mark-only treats in our bedroom. When Luke showed a pattern of going into our bedroom and taking them anyway, we got a lock for our door (it's an electric fingerprint lock so we don't have to worry about a key because ADHD). I have reminder labels on shelves and on the freezer saying "ask first." I have a snack bin on the outside of the pantry that I do my best to keep full of approved snacks. I may not do these things perfectly, but I am trying SO HARD.
Nothing seems to work. NT people will often say, "Just don't keep those things in your house" but then all of us suffer. I have talked to Luke several times about it. I have tried to have him empathize, even reminding him of when he's been upset about something of his being taken by a friend or sibling. He says all the right things; he apologizes. Then two weeks later it happens all over again.
I read a post a while back from an ADHDer traumatized by always being called a thief in his own home. I hate the thought that Mark is doing that to Luke! But I legitimately don't know what I can do to fix this!
TL;DR: Son seems to lack self control and eats dad's snacks. Dad flips out and treats him like a thief. Son acknowledges "the rules." Cycle repeats. Mom dies a little inside each time.
Have any of you gone through anything similar? Do you have any recommendations?