[ Well, maybe most people wouldn't, but Kokichi absolutely would. He couldn't remember the last time he had a target so ripe for pranks! Was it cruel? Probably, but with any luck, she would soon forget anyway, or at least that's what his homework was telling him anyway. ]

Big sis! You're late! AGAIN! How could you do this to me?!

[ He pops up shortly in front of her, eyes full of tears, looking just... frankly pathetic. ]

Y-you promised! You promised and you FORGOT! AGAIN!