The boys are in at night and out during the day. (DH has ordered a heater for their pig house so that they can still go out when it's winter.And they've got hot water bottle & Snugglepad heat). If they were in all the time they'd go stir crazy.
But they go into over drive when they hear the fridge open. I'm making coffee - they hear the salad drawer.
Or anything rustling- they assume it's for them.(So no sneaky bag of crisps
)
At this rate they'll be noturnal like hamsters ! 