By making it seem antic, it will weigh in your favor when the authorities come for you. It goes with number three in the fact that it could save your ass. Hey, what the hell, it's your revenge. It's generally time consuming, so have fun. Make them understand this is war.
Few people fear the sane.
Everyone makes mistakes. Keep an ear to the ground and your nose in the wind. It's not enough merely to get even. He pulls a knife, you pull a gun. He sends one of yours to the hospital, you send one o'his to the morgue.