This does not just happen on the carousel. Was on the Paddington Heathrow Express on Saturday when after the stop at T1/2/3 and on our way to T4 a young guy realised someone had got off with his suitcase. There was a lone suitcase sitting in the luggage rack in front of me that was unclaimed. Another case of mistaken identity - nondescript black Samsonite canvas rollaboard.
Ozzy