Zim (Sarcastically): Oh, you poor, poor thing. By the way, you forgot your briefcase! 

*He pulls a briefcase out from behind his back, and opens it up to reveal that it is filled with poptarts as he angrily dumps them all over Mu.*

Mu: So, this is the thanks i get for working overtime?

*Zim looks very angry*

Zim: OVERTIME!?

* Zim and Mu start arguing*