Back to the dumbwaiter theory.
You’ve discovered the hidden basement access to somebody’s floor safe. Might be family photos. Might be weed.
If it were a Scooby-doo episode, it’d be a million dollars in Confederate money.
Or a half-dozen rubber masks.
Or counterfeit Confederate money.
I am disappointed that opening the door didn’t reveal a small cooler sat inside.
So, what news of the mystery hatch? Are you content to let it lie undisturbed and never know what is behind it? Will you ring the bell?
Oooh! I love learning fun dirty euphemisms from across the pond!