When they get pissed off:

Tsubasa:
She's a walking ball of rage, but you get on her last nerve and expect to get a book to the face. And Hoo boy, make fun of the phantom thieves you're gonna have a wild fucking ride. And not a good one. She might kick you where the sun don't shine if you're a guy.

Daichi:
He's not easily angered, but you piss him off, you better pray. Especially if you make negative comments about Hanabi or the rest of the Investigation Team.

Hanabi:
Will play it cool, but if you tick her off, she's plotting your murder. You'll also get death glared at 24/7. Seriously, be real careful what you say around this girl.

Kayla:
DO. NOT. PISS. KAYLA. OFF. She's fucking terrifying when she's mad, and you're gonna get physically hurt, no doubt.

Miyuki:
She doesn't get mad easily, but she will let you know if she's upset. Hey man, expect sass.

Hime:
...you're gonna piss off the seventh wild card holder?
...alright then.
It was nice knowin ya.
Hime doesn't get mad easily.
But bring her friends or family into the ordeal, then you're FUCKED.