Originally Posted by GUWonder
There's that whole "incidence of contact" scale.

That is, the number of screeners potentially bothered by one bad passenger is generally far less than the number of passengers bothered by one bad screener.
This works both ways -- the number of bad passengers one screener encounters in a day is far greater than the number of bad screeners one passenger will encounter in a day.
Granted the screener has more abuse potential than the passenger -- most of the time. I'm not trying to defend these abusive people, merely pointing out that if we step back far enough screeners and passengers tend to be similar people overall.