A long time ago (1980's) I met what I assume was a teacher, with several young people, on the top of the Glyders. You could see for miles, completely clear. He asked me where they were. He did have a map, but had no idea at all where he was. I showed him his position on the map and gave him some advice on which way to go. I didn't hear any more about them, so assume they didn't win a Darwin award.
I recall thinking "What are you doing up here, if you can't work out where you are in perfect conditions". He was obviously incompetent and shouldn't have been out in charge of a group of young people. However, I have made stupid mistakes myself in the mountains. Perhaps a case of "People in glass houses..."