If you're pounding one out that won't really save you. He probably games with headphones and just doesn't want to get jump scares by mom.
I always had a desk and a bed and I made a point to never have my back towards the door when I was at my desk for the above reason.
I used to almost exclusively listen to any kind of audio through headphones. I had a microphone near my desk configured so that it would pass through the vibration of footsteps directly to my headphones. I was rarely startled, no matter what sordid activity I was undertaking.
Same for me at work. But I use a mirror from Aliexpress.
It's for boosting Wi-Fi reception, don't worry about it.
If they can't figure it out, no one tell them.
Give him the keys for his room...
Because it's dull, you twit! It'll hurt more!
That’s actually really clever!
Partially heeding the advice of Thufir Hawat
"And when we hide porno, we go all out. It ain’t behind the refrigerator or under the bed. No, we become Batman when it’s time to hide some porno."
Mirror?
Cyber-smack
Seems like new musky brand coming up
To eat yogurt
