There's a saying: the timid fear the ruthless, and the ruthless fear the ones who don't value their own lives. That sounds about right, but it still depends on the situation you're in.
For ordinary people, that's indeed a decent method. But if you're up against a big shot like Zhang Beixing, then you're just being an idiot.
Compared to the people in this underground boxing arena, Zhang Beixing's strength and background are both way beyond anything they can afford to provoke. Acting tough and throwing your life away in front of Zhang Beixing only speeds up the rate at which you go meet God.
That's also why, after learning Zhang Beixing's identity, the manager of the underground ring didn't even have the slightest thought of resisting.
