By Ben Clemens a/k/a Kelley Williams, Jr.
(with apologies to Theodor Geisel)
Now, the Mask-Wearing Fleechers had faces with masks.
The Plain-Faced Fleechers did not should you ask.
There were both types of Fleechers wherever one went
Often regarding each other with the utmost contempt.
The Mask-Wearing Fleechers were heard to observe