It happens in less than a second.

One hand, two, an iron grip on his wrist, and then he's down, forced into a twist to stare at the ground, while humiliation floods in an angry rush through him. "Ow."

The psychopath is saying something, talking down to him like he's a kid, like he's the one out of line, and Danny can't move, because if he does, this asshole will probably break his arm. "What are you, a ninja? Let go!"