It was not me. I am simply the one standing closest to it, which apparently is the same thing to everybody in this house.
Somebody checks it every morning, taps the glass twice, looks at me, and then leaves the room. Nobody has ever checked the bin.

Followed it down the hallway once. Do not recommend. The hallway was not the source.

I have stood next to these for two days trying to make a point. Everyone thinks I am posing.

Somebody opened that door and then walked off like nothing had happened.

It comes through the wall. I have traced it this far and I am not going any further.
I hold my own nose because I am the only one here being honest about it.