I'm trying to keep my cool but I'm about to loose it. We go shopping on a weekly basis. We have a budget so usually I have a whole meal plan set up for the week.  The kids usually have breakfast and lunch at school.  Except my youngest she  takes lunch because she's picky.  We buy the kids their  own individual boxes of breakfast foods(waffles, toaster strudels, or cereal) it changes each week. We get the sausage pancake on stick because that what the youngest eats for breakfast before school.  Well on a Sunday morning my daughter was waiting for her breakfast to cool off.  She left the dining room to finish getting ready and when she went back it was eaten with the stick just left sitting on the paper towel.  We asked the kids who ate it.  They had already eaten breakfast.  Both kids said not them.  I know by actions now who is lying. I knew it was my SS.  He persisted it wasn't him.  Even had the audacity to ask his sister why she ate it.  So we said no movies until we get the truth.  He finally admitted it was him.  This isn't the first time either.  We buy the kids their own snacks. We have to keep them in our room because my SS would eat his whole box of snacks in one day.  Then he would eat his sisters and lie that he didn't eat them.  Been told numerous times to stay out of other peoples food.  He would then go into our room and take them so now we literally have to lock them up or he will eat everyone's.  I bought 4 things of these teriyaki noodles they like.  He picked teriyaki flavor and SD picked chicken flavor.  I told them on Sunday this for lunch for this next weekend. If they happen to stay home for a day which my SS did because he was sick there is  corn dogs, pizza bites, grilled cheese, mac n cheese or top Roman.  But today I went into the cupboard and seen one of the chicken flavors was gone. Yet again my SS is eating something that was his sisters. We ask him why and he goes oh I didn't know what to eat for lunch. This is a constant thing.  I get its food but still.  The not getting listened to especially with inflation times are hard.   He has no remorse for his actions.  If he woulda just ate his own then he'd just have to eat something else on the weekend. He chose apple toaster strudels and I got strawberry since I don't like the apple ones.  I open the freezer and mine were opened with two gone.  Yup my SS ate them. His excuse was I didnt look at the box.  He does have very slight autism but not bad enough that he don't know better. So then that leaves him still with the foods he likes.  However now we are short on our things because we can't just grab his in replacement since we don't like his. I'm furious!