we had attempted to give him an arc: he starts off thinking the player is irrelevant, then finds them amusing, then hates them with an unquenchable passion to the point where he will do anything to kill the player in single combat.
This is, incidentally, the exact same arc we wanted the player to experience in regards to Jack.
We wanted you to initially think of Jack as a funny, but ultimately harmless dick. That’s why the Butt Stallion monologue comes so early in the game – it’s too goofy to take seriously – but why it also lives in the same area as the ”Handsome Jack Here” sidequest, where Jack brutally murders Helena Pierce and then laughs about it. Jack’s a marginally dangerous dick because he kills Helena, but he’s hopefully kind of amusing because of his weird Butt Stallion/pretzels dialog.