These people use the implicit threat of violence to get someone to stop doing a thing they don’t want to continue. They believe that the chance of going to the morgue is very low and the chance of going to jail is also extremely low. So they do it because they think the expected benefits outweigh the expected costs. They would be less likely to do so if they lived in a country where most crime is punished and reports of crime are generally investigated. That’s not Scotland though.