Things people leave behind when travelling

Understandably for most travellers their holidays begin, the moment they bid their goodbyes. So far so good. But the unfortunate part is that  in their excitement they tend to leave behind some of their most precious and personal items. One can overlook and take it in the stride if the items left behind is  as insignificant as a handkerchief or a toothbrush. One can  consider the error as venial. But what if the items left behind are precious and especially indispensable? The HT World came out with an amazing list of items that people have left behind while travelling.
The list of items include: Smartphone, IPads, Cameras, Kindles laptops, books reading glasses and so on. But in one case a gentleman or a lady left behind an artificial limb in a plane! How did the person get off the aircraft? He sure was excited to deboard the plane!