It seems to me like it should be the Police who maintain their temper/calm!

[Fire Walk With Me]

4. Absolutely. Police are =supposed= to be capable of keeping their cool,

of "keeping order".

In my experience as an Occupier, police have orders to do whatever it takes to spoil peaceful protests and to create nuisance arrests out of the resulting chaos. And I am in no way exaggerating for the benefit of the movement. In LA we've documented snatches from behind to provoke an arrestable response; a cop LIED and arrested one of our own in Chicago a few days ago and the NLG observer who was presented confirmed the cop was lying; two cops lied under oath recently in NYC and livestream footage proved them liars, cases were thrown out...

But to the point, if you are being entrusted with a lethal weapon, you -must- be trained to keep your cool regardless.

Note that a kid who lead cops in LA on a high-speed chase recently ate 90+ bullets as a result. Too many cops are in it for the adrenaline, for the feeling of being tougher than someone else and being able to be unaccountable for it. I've met a few decent cops and I honor them, but they are the howling exception.