(Thanks to snell of Slay, Monstrobot of the Deep!! for making this post possible.)
I'm not a fan of Monty Python.
I say this because in order to be a fan of something, you need to have at least a little bit of familiarity with it, and despite the prevalence of familiarity with it among Internet circles, I'm not. (My mother dislikes Monty Python, so I don't really have any good opportunities to watch it.)
I'd say more, but all I can think of to say would be explaining the joke.
(IT'S FUNNY BECAUSE A GUY WEARING A SUIT OF MEDIEVAL PLATE ARMOR IS HITTING GUYS WITH A CHICKEN!!1!)