Ah, but every school will have bullies, every workplace will have people that others find odd or uncomfortable, nasty nicknames are reasonably common. Smacking a colleague on the bum - this is not okay at all, but I must say I've been in many workplaces where these sorts of things have happened and again, it's somewhat common. On their own, those factors don't add up to much. However beyond that there was a step towards deviance (sex workers, while maintaining a presumably normal and happy family life) and then criminality (the flashings) before the current crimes took place.