Let's sit the operator down and have a robust discussion regarding his obligations to his family first. In this way we might facilitate a natural sequence of responsibilities leading to better conduct during each shift. Building columns are designed to withstand some impact, yes, but society is less tolerant. Refresher training 'is' a slap on the rist, if a workplace breach has occured, repeatedly. Sit him/her down at work with their life partner and 'go over' the rules again. See how the Minister for Internal Finances and Home Activities (operator's wife/husband) reacts to this. The operator might improve after such a special meeting. One may assume.