"plus the predominance of male surveillance operators, often young and immature"
I do have to say that comes across as a that's a pretty condeming blanket statement.
Also, it was right for Smith to try and put a stop to the behavior and discussing it with the offending co-worker. But one thing you can say he might have done wrong is circumventing management and going straight to the woman without giving management a chance to address the issue. He (according to the informaiton given, which doesn't say he did) did not give Guardsmark an oppurtunity to investigate the situation themselves. As it stands, now if someone asks Guardsmark if they did anything about this or if they discpline such actions when they arise, they can't say that they did or do, because they weren't given the chance.
If Smith reported the issue to his superiors, and nothing was done, that would be one thing. But my question is who in his immediate supervisory chain did he notify?