Michael Maltese is attributed as the writer of "Say Fleas" based on elements he used writing shorts at Warner Bros. and Hanna-Barbera.
In the opening panel, the Inspector’s disguise as a flower seller bears similarities with the Shropshire Slasher’s mother in 1956, Warner Bros. theatrical short “Deduce You Say”. Michael Maltese repurposed the concept of fleas committing jewel robberies at Spiffany Jeweler’s then hopping on a dog as a getaway car from the Snooper and Blabber cartoon, “Flea for All” (1961). The name Spiffany’s Jewelers is a play on Tiffany jewelry stores that had been previously utilized in the Warner Bros. theatrical short, “The Mouse on 57th Street” (1961).