David Lipman commented that the only thing that made HMMs interesting was their name - there’s something’s hidden, and a Russian is involved.
Read more about HMMs.
Not only is that hilarious, but his 95-page HMMER Users Guide includes such indispensable sections as "How to avoid reading this manual" and "How to avoid using this software (links to similar software)".
As scientists go, you gotta love this guy. :)