* ''CatDog: The Great Parent Mystery'' is full of these, but this one reveals Cat's true character beyond the shadow of a doubt. After their long journey and Dog begins expressing doubt over ever finding their parents, Cat reassures him by telling him that they will always have each other. "We are brothers."
** The ending's reprise of the theme song
-->[=CatDog=], [=CatDog=] [[spoiler: alone no more is the little [=CatDog=]]].
** The giant blue monster's benevolent WhamLine:
-->'''Giant Monster''': [[spoiler: HI HO DIGGETY!]]
* Really, any time Cat sticks up for his brother is this, showing that he still cares for Dog despite all the stuff he does to him. For example, in "CatDog 3001," Cat and Dog have been separated from each other because [[ItMakesSenseInContext the people of the future think Dog was a hero and want him to save them from a giant descendant of Winslow]]. Winslow's descendant defeats Dog, but Cat sees what happened to his brother and - in what is also an AwesomeMoment - puts him and Dog back together and beats the bad guy by [[ItMakesSenseInContext using Dog as a vacuum to suck him into their body.]]
* Winslow falling in love with a ConArtist rat girl in "Winslow Falls in Love". [[spoiler:Quickly turns into a TearJerker when she steals his stuff and leaves him]].