I had a guy ask me the exact definition of icing conditions during line training when I switched to the Airbus. After giving him the spiel he told me 'you're close but no cigar, you need to review that.' I didn't really understand what the problem was cause I thought I had that down pretty tight. Went home, checked the books and realized that when I gave him the definition I hadn't mentioned ten degrees
celsius, just degrees and that's why he marked me down on that in my training folder.
Next day when I arrived I just gave him the folder and said that if that's the way we're gonna play he might as well mark everything down. He changed it into a plus and didn't ask me to define it for him again
. Compared to some of the stories here it's not horrible but it's a funny memory because he was a really good bloke, just had a brain fart I think. Ended up learning a lot from that fellow. When we bumped into each other a year later we were both kind of grinning at the whole situation.