Foster's Home For Imaginary Friends

Mac tells Bloo that he can't have fleas because fleas need fur (duh), and in the end Bloo gets "superfleas" that are actually ticks, which Mac says suck out his blood. In reality, both fleas and ticks live by sucking out the blood of their hosts; it has nothing to do with fur, so the fur solution at the end wouldn't really work. (Even though the fleas are imaginary, Mac said that fleas need fur before he knew they were imaginary.)

In the end when Frankie says there's another door we're not going in again, she's referring to the episode "The Trouble With Scribbles."

Candi Milo, who normally voices Coco and Madame Foster, can be heard voicing some of the fleas on Eduardo. This is significant because she played The Flea on the cartoon show Mucha Lucha.

The door of the room the fleas are put behind has the same "Stay away! Do not enter!" notice as the secret door from "The trouble with Scribbles".

For this episode's first few showings, there was no closed captioning.

Look Hard: When Bloo is contemplating how to get fleas in bed, the clock reads 2:59.

Eduardo and Mr. Herriman, among other imaginary friends, appear without fur in this episode.

Credits: Bloo pulling the same "secret door" thing he did in "The Trouble With Scribbles."

Funny Sight Gag: When the negotiations are being held, as everyone else is listening in through the door, Coco is listening through the floor.

Animation Studio: Cartoon Network Studios.

When Eduardo is angry, he makes loud and deep footsteps that shake the ground.

Running Gags: 1) The imaginary friends calling Eduardo a "weirdo." 2) Frankie and Mr. Herriman trying to get rid of the fleas. 3) Bloo asking Eduardo for the fleas.

Eduardo appears naked for the second time in the series.

The new guy from "Beat With A Schtick" makes a cameo in this episode.

The fleas that Eduardo had (that came from Chewy) were all imaginary.

Bloo wants Eduardo fleas because "Eduardo gets everything."

Chewy from "Who Let The Dogs In?" returns in this episode.