you are either very young or very naive
Yep, that's me! I learnt most of what I know from reading a copy of
Jonathan Livingstone Seagull that my grandad gave to me for my 10th birthday!
BC 
PS:
The extra fifty feet above the five thousand is sloppy flying
True, but it is pure chance that the other party was not at 5020' rather than 5070 or whatever' !!!! Precise flying had nothing to do with the outcome - just pure chance!