Trying to rationalize that scene as showing anger is just silly.

Ditto for the two-headed coin which was his dad's lucky coin. Are you saying every person with a trick coin in the world has some deep repressed anger?

And again, he got the nickname because we worked in IAD and put cops in jail, not because he had some deep anger issues.

Furthermore, if all of those things were actually tell-tale signs of deeper problems, why the fuck would anyone think he's the white knight?