EDIT: YOUTUBE VIDEO :DDD
translation for those who don't understand Japanese/Mandarin:
Jaejoong: [captions: chasing after Changmin who had said "Let go of me" and daring him to say it again] You said "Let go of me", didn't you!
Changmin: Help...It's not like that...Nooooo...Junsu hurry come save me...
Jaejoong: Clap hands! -claps Changmin's hands-
rofl, sorry, translation might not be very accurate. But really cute, y/y? :DDD