Drugs, alcohol and movies are to blame for the increase in ambulance officers being assaulted on the job, according to St John Rotorua.
District operations manager Norm Riedinger said there was a correlation between binge drinking, the use of methamphetamine and the number of officers assaulted.
"The prevalence of methamphetamine and other mind-altering drugs which make people a bit bizarre and out of control have an impact."
He said another factor was the number of medical shows on television which depict ambulance officers saving the day.
"They show the paramedic coming along, shocking the person a few times and they come back to life. It heightens expectations that we can save everyone, every time, but that is not the reality."