I once flew alone from Spain as a child and got registered as requiring assistance (due to being a child) There was an old blind lady on the flight with me. Somehow, they mistakenly thought that I was blind, and that the old lady I guess was just old. So they were dragging me around and saying all sorts of confusing things to me in Spanish, putting my hands on things etc. it was a weird experience for me, but probably worse for the poor lady.