I'm gonna say that was a major headache for me today.

When I opened my inventory, I noticed that the mace of Molag Bal wasn't there anymore.

So I thought, I must have accidentally stored it in an enemy's corpse when playing janitor. I went back to the last place I killed anyone, but it wasn't there.

Checked the chest I'd been using to store extra junk, nothing.

Talos damn it.

can't say I have, but than again I am always very particular of how I store stuff (Gems and the like in a Safe, food in a Barrel, books on Shelves or night stands, armor in wardrobes, etc..)