Aye, just gotta rip off the bandaid and make sure you're firm with the rules. My eldest boy has terrible separation anxiety and acted as though I had died for the first week or so, but adjustments were made and it's been relatively smooth sailing since.

I did acquiesce and allow interruptions when the door is open, for times I'm checking email or other administrative tasks. That same son has high-functioning autism so I do find myself bringing him in to calm him down on occasion.

I've found my wife is the one who refuses to follow these guidelines most often, lol.