Angry about the measles outbreak? Good. Just be careful where you target it, writes Kyle MacDonald.

Vaccinations. As a parent I quickly learned it was something to avoid discussing with other parents. Sort of like the old maxim "never talk about sex, money or politics in polite company."

I was never very good at avoiding uncomfortable issues though, call it a professional hazard.

However, like other impolite topics, vaccination provokes strong emotions, and clearly plenty of people are very upset about the fact close to 1000 people are reported as being infected with measles in the Auckland area.