Foster's Home for Imaginary Friends, Season 1

Terrence:
[as Mac returns home while waiting in the dark] You are so busted. Coming home late, trying to get me in trouble? Well, your little plan didn't work. Mom's not home yet. [gives his brother a whack on the back of his head, each time he calls him "stupid" but Mac keeps on ignoring him as he heads to his room] Where were you anyway? Stupid. What are those stupid eggs? Stupid. Where's that stupid little friend of yours? Stupid. Mom told you to get rid of him. Oh, boy, if you didn't, you're gonna be so bus-

Mac:
[snapping furiously] I was nowhere, they're nothing, and I took care of it! HAPPY?! [slams his bedroom door shut as Terrence reacts puzzled]