This is an episode of Nerds!
Isabella: Whatcha doing?
Phineas Flynn: Heading to our art class.
Ferb: Let's go.
In art class
Buford: RAAAAAAAAAAAAH! I can't get my drawing of randomness done! I need it to be abstract, but I wanna draw a fish.
Baljeet: Buford, it is easy. (shows Buford his painting)