There are a great many muppets out there who shouldn't be in charge of wheelbarrow, let alone an a/c.
FI's aren't to blame for this, but we must all try and see and quosh this sort of blase attitude early on. I don't want to take any of the fun away, just get people to think about the consequences of their actions.
I have seen a large number of gash pilots, one or two of whom have passed through my hands at some point and despite my best efforts, when they are away from supervising (prying really!) they get up to all sorts of idiocy. Unfortunately thses people aren't members of our club so I'm limited in my power over them and only usually get to 'have a go' on the 2 year flight. Not really enough and anyway they are on their best behaviour then anyway.