Violence against ambulances is not a new sign of 'society breaking down' as some might interpret it. Rather, it is the case of 1) media normally not reporting it, and 2) media now reporting it.
From handling combative patients to being exposed to contagious diseases, emergency medical workers face one of the most dangerous and injury-prone jobs in the country, according to researchers and federal workplace safety data. Emergency medical technicians (EMTs), who provide basic life...
www.nbcboston.com
A big part of it is that ambulances don't show up for fun, so people tend to be really stressed out already. And when it involves multiple victims, ambulance staff has to do the traditional triage; who needs help
now, who can wait a few minutes. But bystanders are not medically trained, and when they see their wife, or child, lying in a bloody heap on the floor they expect staff to help them immediately. Same with risk of contagion: people aren't experts, people are terrified, so a small number of them will do stupid stuff when they think the ambulance is 'bringing the plague to them'. And some people are simply dingleberries.