Last trip I lost my camera at DHS. It fell out of my cargo shorts at either Star Tours or at Disney Junior Live when I sat on the floor, I didn't realize it until after the show. I thought it was at Star Tours because I remembered hearing a thud while I was in there. The CM was very nice and let me go back into the car to look, but it wasn't there. It was about midway through our trip, including 2 days at US, so I was pretty upset. Not so much about the camera, more about the pictures on it. Ruined the rest of that day. The next morning I called lost and found and they had it there. I booked it from Dumbo all the way to the TTC. I was relieved to have it back. Needless to say I will be uploading pictures on a nightly basis from now on, something I used to do but didn't do on that trip.
Funnier story about lost items. During a trip as a kid, we visited Kennedy Space Center and I got a NASA hat. I was really into space exploration as a kid and I loved that hat. I lost it in the MK, but my dad took me back to the Cape to get a replacement. When we got home and developed our pictures (back in the days of film) we saw the hat sitting under one of the benches in the MK. We still get a laugh out of that. Then as an adult I lost a NY Yankees 2000 WS cap, which was never found (left a belt in a hotel room during the same trip). I have since stopped packing hats for Disney because I obviously have bad luck with them there.