In our pharmacy, we've been subjected to swearing, yelling and had a box of combs thrown at a pharmacist over the past year. I know of other pharmacies, locally, that have suffered a lot worse...
In light of these disturbing figures, it's probably worth all pharmacies revisiting procedures to ensure that they are prepared - so that all pharmacy staff can react quickly and appropriately to threatening, or criminal, activity - to stay safe and hopefully defuse the situation so it doesn't escalate out of control!