"Can you help me?" 

"Help what?"

"Take the cereal box."

"Here you go."

"This is flour!"

"It's not!"

"It is!" 

"Check it by yourself"

"Who the hell exchange their place?!" 

"Me"

Sehun got hit by her and he felt proud of himself because he have time to do that silly thing last night despite stressing over his assignment.