I've heard of bits of uniform going walkies, purses, drink, sealtbelts, lifejackets, mobile phones etc. Basically, if it is not nailed down, some light fingered git will nick it before long. However, one unlucky bunch of cleaners got tumbled when we realised that somebody's mobile phone had been gone walkabout. We dialed it before they could take the battery out and bugger me, it rang in the cab of their van! Either they stole it is telekenesis is a fact of life.