They should have had Rick sneak into Mortys room and scream his name to get up. Can pull audio from other episodes from past. Morty wakes up screaming and punches Rick in the throat. Rick starts choking and Mortify asks if he is alright, using old audio again, than Rick punches him in the throat as retaliation. Then they both continue to choke for a few minutes. Then in new voices the agree to never talk about this again. Que new intro.