“You should have bargained Jabba. It’s the last mistake you’ll ever make.”
I enjoy the expression on Luke’s face and satisfaction in his voice when he realizes that Jabba has pushed him into a position where he will be forced to eliminate him and his henchmen.
When forced to kill a Jedi has few, if any, regrets or remorse. Obi-wan couldn’t give two shits after cutting down the guys threatening Luke in Mos Eisley.
This is why Jedi were once (back in the 90s) cool characters.