Full freak out if you dare use the last of any particular item, despite two things: (i) that the user will replace it with a full selection given half-hour and a pop to the local Co-Op, and (ii) no one else was going to consume it in that time.
Conversly, will passagg moan that no one ate the final slice(s) of something she’d baked but hasn’t told about cos she just assumes the boys will come round and help themselves anyway.
The usual cause of this is bacon. When you fancy a bacon sarnie before bed cos cba to cook and it’s easy. “Well I was going to use that for dinner tomorrow” versus “Yes but it’s midnight, nothing’s open and we’ll have been to the shop and back before you get up at 7 am”
Or trifle (and only mum eats trifle yet makes it constantly)
Might push her in a big fucking trifle one of these days.