Implausible Deniability: When tangled up in the electric wires, the computer-in-Muriel's body insists he's not scared before warning Courage that it would be advisable to untangle him or they'll be electrocuted to death. There's an inflection that implies that for all his inability to feel fear, he is somewhat worried something bad will happen.
Irony: The Computer decides to use Muriel's body for dare devil stunts, if only to prove to Courage what he deems brave. The problem is, he's not being brave so much as he's being reckless, while Courage keeps proving his namesake by rescuing Muriel despite getting hurt because he's afraid for her.
Pet the Dog: The episode ends with the Computer helping Courage type up a simple but sweet ending to the story he's writing, if only to thank him for saving his and Muriel's lives.
