My husband used to do a great impression of a blue arsed fly whenever his parents were over (fortunately not often). He’d go off to make a cup of tea, start the kettle, run back in, tidy some toys, go back to the kitchen, bring through a tray, let the dog out, check the youngest didn’t need a nappy change, let the dog in, pick up his cup, oh, it’s cold, should I make fresh, pick up a toy on the way back to the kitchen.
I used to sit on the couch thinking wtf is he playing at??
Eventually I pointed out there was a reason his mother wasn’t fond of me, it was his act of having to do everything.
Edited to add…
when our eldest was a baby my husband could fit the sentence “when I was up last night with the baby” into any conversation on any subject. I eventually told him to cut it out, he made it seem like I did bugger all.
So, yes, bite your lip, you have no idea what their lives are really like when you’re not there.