Wow, I would've figured the opposite, that people who have interest in the rail further than the pay want to do well and enjoy the role, so it would have been something to bring up at interview.
I usually pop down to my local station or a few stations down to watch services if I have an hour to kill. Been approached a few but it's usually fine when they understand i'm not there to misbehave. Makes me feel comfortable as it tells me they take security seriously. That said, any railway enthusiast who brings a notepad and jots things down is pretty brave!
A misbehaving rail enthusiast is like a doctor that disavows vaccines, and the focus should be on how enthusiasts help the railway and possibly make good hires? Out of curiousity, how is it that these enthusiasts "misbehave" so much to gain a bad rep that it overshadows good rep? Regardless, advice from someone who has been there and done that is always appreciated.
Thanks.