Most people are pleased to see ambulance officers.
However, it's obvious that there is also an unruly minority determined to make an already demanding job even more difficult for ambulance officers.
Fed up with the violence, St John staff in Northland are considering the need for police escorts after an ambulance and crew were pelted with rocks.
The ambulance was returning from a job when it had to stop in the middle of the road as large rocks had been placed on the highway.
The well-meaning ambulance officers left the vehicle to clear the debris and came under fire from idiots hurling rocks at them.
It's likely that at some point in their lives those responsible for the attack will find themselves in a situation where they need St John's help.
Then, maybe, they will realise that it is an essential service for the community as the first response to medical calls and accidents. They might also realise the initial medical treatment they provide can be the difference between life and death.