Left hook him to death?
I'll ask him to show me one of his 'top secret' special arm twists that he was taught by a Shaolin monk. Then when he's busy complaining that I'm not grabbing him correctly and 'I need to do it like this, grab here, with the palms outward', etc., I'll launch a corkscrew uppercut right under his chins then follow it up with about ten soccer kicks to his head.
I'll then whistle over to the Range Rover and Darren will run out, strip Jai's pants off, and smear a combination of vaseline and Deep Heat around Jai's anus so that he thinks he's been raped once he regains consciousness.