Like I said before, I'd be ticked if I made pudding and someone ate all of it and left the dishes for me. Not ticked enough to post it on the DIS, but ticked all the same.
It is why there is that Rice Krispie directive hanging on my fridge. I don't like it when people eat all my stuff just because they forgot to put Corn Pops on the list.

The Krispies are mine, off-limits to the kids. If they get up late and have to go to school hungry, I don't care. If they starve to death for lack of Krispies, I don't care. If the whole world is going to implode for lack of Krispies, I just don't care. Mine, mine, mine.
OP, someday you'll have your own house and kids who eat your stuff and you'll be able to put up directives, too.