It's not until after he's pulled the whole thing off that Jason realizes what a stupid move it was.

Jango's eyes flicker up, down, up again, and it’s meant to be dismissive, but Shaak knows wariness when she sees it, and it makes her smile just a little. “Lady, I just tried to put a slug through that fancy headdress of yours.” With a chuckle, Shaak takes a step closer. “Fett, I've been a Jedi for decades. If I held a grudge against everyone who had tried to kill me, I would have more enemies than you.”