Nigel's line in in 'Reef Grief.' "We seem to be faced with a fascinating lack of options!"
Nigel's attempt at throat-singing at the end of 'Horse Sense.'
In 'Bogged Down' Eliza and Darwin are being threatened by mysterious creatures who later turn out to be flying lemurs. As Eliza leaves them alone they sigh in relief only for Darwin to scare them off with a sudden loud evil laugh.
Stuck inside the sinking comvee with Eliza, Nigel answers a frantic radio call from Marianne with, "Nigel Thornberry. Everything normal."
The Wedgie Dance. Enough said.
When Darwin sneaks into Eliza's bag and causes a food fight in the lunch room. He is therefore forced to be left in the horse's barn.
Darwin: Where's the bathroom? Thunder: You're standing on it! (view to Darwin's feet sinking in horse manure) Darwin: AAAAH!!!!
How Debbie ends her parents phone conversation with Eliza while shes at Boarding School.
Marianne: Now, try to have fun with your new friends, okay? Debbie: She's making FRIENDS?! Give me that! [takes the phone] Hi. Here's what's going on with my life. Donnie's now half goat, my hair is half terrier, and we're heading into the abyss, where there is now hope of teen interaction. Goodbye. [hangs up the phone, cut to Nigel and Marianne tied up by the phone cord after Debbie was walking around them] Marianne: [stammering] Debbie!
Grandmumsy Cordelia and Grandpa Ratcliff report to Debbie that Eliza escaped from boarding school. Debbie's response?
It's especially funny since Debbie has been wanting to go to London herself, to escape from the wildlife.
"Excuse me while I go find a container for my joy."
When Debbie runs into the natives, who send one of them named Boko as her guide. While Debbie tries to tell Boko he can't come, Boko notices a large snake approaching her, and fights it, while Debbie, utterly oblivious, babbles on and on as Boko continues fighting the snake, then tosses it aside.
This gem as Nigel and Marianne leave Debbie with Donnie.
Debbie's reaction when Eliza explains her powers to her after losing them to save her—at first, we're led to think that she doesn't believe her, only for Debbie to reveal that she suspected it all along and then demand that Eliza relay a message to Darwin.
Also, the reaction Debbie has when Eliza gets her powers back.
Debbie: (Flipping through a fashion magazine) I don't know how I'm going to keep this secret of yours.
Eliza: Well, you have to. I kind of made a deal with the Shaman to get my powers back.
Debbie: (Not looking up from her magazine) Uh huh?
Eliza: He said if you told anyone I talk to animals...he'd...turn you into a baboon! (Runs away)