The Crazy Caustic Spray of the Contagious Cruelius Sneezer is the tenth season 2 episode of The Epic Tales of Captain Underpants.
George and Harold goad Melvin into making a time machine to take a field trip to the real ancient Rome while Mr. Krupp makes an emperor power play out of delusion. Things go wrong when Cruelius Sneezer becomes a reality and Captain Underpants is required once again.
- Melvin's future self makes a small speaking cameo in this episode and doesn't have a role.
- Melvin is nice to Harold and George in this episode.
- The dog-cat from The Bizarre Blitzkrieg of the Bothersome Butt-erflies, returns in Melvin's nightmare.
- Cruelius Sneezer is based of one of the Roman leaders, Julius Caesar.
- MORAL; not everything is as good as it’s cracked up to be.