Sure, violence isn't usually directed at co-workers. I don't think I've ever seen that happen (it does happen of course but is fairly rare). I did have a couple that attacked a customer or two but that was after being provoked. In those cases, they didn't have any prior offenses so weren't convicted felons.
You can't stop thieves though. You never want to insure against that - you will always lose.
You can't stop thieves though. You never want to insure against that - you will always lose.