Have you heard of The Haka? It’s an ancient traditional dance in New Zealand. A variant of it practiced by the All Blacks Rugby Union became controversial a few years ago for its alleged psychological impact.

From Wikipedia:

Haka may be understood as a kind of symphony in which the different parts of the body represent many instruments. The hands, arms, legs, feet, voice, eyes, tongue and the body as a whole combine to express courage, annoyance, joy or other feelings relevant to the purpose of the occasion.

The type of dance performed by the rugby players was a war dance:

It’s easy to understand why some might find it controversial psychologically, but isn’t that part of what games are about?

The Haka as performed by the All Blacks Union makes the NFL and its pregame show look utterly milquetoast in comparsion.