Just for shits and giggles, it might be worth breaking into his place and attaching the air compressor to the blow-up doll he doubtless spends his nights with.

mommy issues

"I also sleep under a sleeping bag on a child's-sized bed as an adult."

Looks like a poor man's Sybian.

his mom musta come to the door for him to yell that, as he of course lives with her.

the thoughts going through her head had to be," where and why did i fail as a parent so bad?"

NEEEEEEERD.

Head trauma.

I bet his bookshelf is FULL of D&D manuals.

He's probably going to whip this out when he gets a girl over...
It will prolong his time as a virgin.

Presenting: The William Heath Robinson Virginity Shield

Rube Goldburg?
No, I don't think so.

The fact that the floor displays no evidence of flexibility or give makes me think that it is resting on poured concrete, like you would find in a basement.

His parent's basement.