It’s a nice suit! You can’t just discount a candidate because they wear a hockey mask 24/7.
It was the power tie.
He got a job in the mail room after getting extremely mad and breaking a table during the interview.
Also he got promoted after threatening the mail room boss.
What makes this funnier, to me, is that animators and directors all had discussions about how this scene was going to be drawn. It’s not like some rogue illustrator slipped this one in - the studio itself committed to the gag. Plus, it’s very in-character for Casey Jones who is rarely seen without that mask, or unarmed.
This also has strong video-game energy, like “Dragonborn wearing a chef’s hat”, or “Solid Snake in a cardboard box.”
Re-waching that show as an adult, the animation is terrible and doesn’t live up to my memories at all… But I’ve a new appreciation for the scenes with krang n shredder arguing like an old married couple. That shit is gold