I'll also add other things that make me laugh starting with each letter.
Letter F is for Freedom, a topic that can get many people motivated to do anything... including run. A special thanks to Aaron Schimbeck for putting this one together.
Other things that start with F that make me laugh:
F is for--well, this one might make me cry, but Firefly. Seriously, Fox, what were you thinking when you cancelled this show?
F is for Frozen screens, which I have to deal with on a regular basis (I work in IT, in case you didn't know).
F is for giving an eFF. Seriously, today's letter is F, how could I not make reference to this word one way or another?
F is for Facebook and some of the brainless posts I see on there often.
F is also for Facebook Friends, and how the icon looks like Luke an Darth Vader.
F is for overprotective Fathers, and the only reason I'm not in jail is because I never had a daughter.
F is for Fire. I like fire!
F is for the importance of Firearm safety.
F is for flies, and how they love finding ways into your houses but never out.
F is for Forrest Gump. RUN, FORREST, RUN!!
F is for Friends who always have your back.