[mhurron]

The only one showing any lack of social intelligence is you. The author is choosing not to go into unnecessary personal details while giving a short back story as to why they did a thing.

I've thought of doing basically something similar so my wife knows I'm in a position not to be disturbed. I can, and do, tell her when I have a scheduled call, but unscheduled calls do just happen. Something like this would let her know I can't be disturbed without her coming in, asking and then going 'oh shit, sorry.'

In no way is it engineering a way out of dealing with my wife.

[venturecruelty]

The nice thing about boundaries is you are not required to explain yourself. "Hey, please don't interrupt me between 9:00 AM and 5:00 PM, unless it is an emergency. I need to get work done, and interruptions break my concentration. Thank you for understanding." You also don't need to build complicated devices.