Beware the Dice Demon!
In the mid-80's, my original gaming group played in a friend's basement for many of our sessions. His family lived in a typical 3 bedroom rambler which had an unfinished basement with painted block walls and a smooth concrete floor. Our gaming area of the basement consisted of a folding table, surrounded by a couch, an old recliner and some other wooden chairs. Besides a nearby pool table, pinball machine and bookcase, and some laundry stuff way on the other side, the room was empty. Next to the table was a large open floor area to play darts, nerf hoops, etc.
Over the span of many sessions, whenever dice would roll off the table onto the floor, they often would never be seen again. We'd search for a while looking under all the furniture, etc, but we couldn't ever locate the dice. Other items that fell off (figurines, pencils, food, etc) would always be easy to find, but the dice simply vanished as if swallowed into a vortex. Pretty much anytime a dice went off the table, it was simply gone...period. There were no pets, no cracks in the floor and no young siblings wandering around that could explain this.
It wasn't another player stealing them either. More than once I saw a dice hit the floor and roll into the wide open nerf hoop zone, yet when I went to pick it up from where it's momentum should have left it, there was simply nothing there. Nothing within 10 feet any direction. And no one else had gotten up to get it either. It simply ceased to be there.
This continued over the span of several years, with the lost dice tally probably reaching several dozen by the end. We began attributing this loss of dice to the "Dice Demon". We theorized that this demon was probably a relative of the Sock Demon who causes your socks to vanish, but this one has an appetite for small geometric shapes instead.

On the bright side, we did develop some lightning fast reflexes to catch our dice before the fell to the floor.
Eventually, his family moved and we no longer played at that house. In the many years since, I've played at numerous other houses, but I have only lost a couple dice. To this day, each of us still has no scientific explanation for the massive loss of dice in that particular basement.
Maybe there really was/is a dice demon.
