Kill him. Invite him round to your house and then kill him. Or seriously maim him.
Are you old enough to drive? If so run him over with your car a few times. If you’re too young to drive, I suggest you use a lawn mower and mo him to death. Tell him that the blades need cleaning and could he do it for you. Then stand behind him, plug in the power just as he’s in there up to his elbows cleaning. And as they start up spinning up and dragging him in – give him a boot up the arse for good measure to finish him off.
Then sit back amongst his offal and sup on a Pinacolada with cherries and one of those umbrella things, and take in some rays.
Peace.