Not only planes. I was once on a train in Germany and a man got up to lift down a wheeled case for an elderly woman. Alas it was a home-made trolley affair. First case then trolley fell onto my head, shoulders, knees and feet, then the man stepped back onto my glasses. Then they both got off the train leaving me with smashed glasses and blood trickling down my face from a gash in forehead.
In this country there is insufficient space for luggage on trains.
not a great one for gadgets but some I have bought



