Toni,

It was your Latin that I nicked!

Regards the bus fire incident:
Well it looks like I spoke too soon, that will teach me.
The bus driver assailant's name was Anthony Donahue and apparently he was a sacked accountant...

http://www.9news.com.au/national/2016/10/28/11/27/driver-believed-dead-in-moorooka-bus-fire/?ocid=9newsbfb

Knee jerk reaction is not likely to overcome mental sickness that is apparently the cause of some attacks by humans on fellow humans.

RIP Manmeet Alisher, bus driver.
And all sympathy possible to his family.

I use public transport often in Sydney, Redfern is my local train station, sometimes late at night. My son is a public bus driver, tells me many odd stories. I actually feel safe catching buses and trains. Yes they are a microcosm of the lower end of society, the strange, the crazy and the beautiful.
The only time I can remember real trouble, was some years back, when 3 teenage buys were playing up and drinking on the bus, acting the idiots. The driver said nothing, but when we got to Redfern Station, the police and Transit Officers were waiting, the driver had radioed for help, and all's well that ends well,

Is Mise, taking your time formulating your response about the use of the machete as a weapon of "self defense"?

Paul,

In the right* hands at the right time any edged cutting weapon is an excellent means of self defence.

* or left hands as required.