_____ is funny

While not all humor is formulaic, some definitely is.

It begins with the original joke, lifted in its glory from somewhere on the outskirts of the intarwebs (sic).

"I think Halo is a pretty cool guy. eh shoots aleins and doesn't afraid of anything."

This statement occurs as a functionally valid deductive argument, occurring conclusion first, with a two premises following in the second statement. The extrapolation of usable parts is simple, and commences as follows:

Conclusion: I think Halo is a pretty cool guy

Subject: Halo (in this case, the misappropriated game title as the name of the protagonist, Master Chief)

Predicate clause: is a pretty cool guy.

Premise 1: eh shoots aleins

Premise 2: (eh) doesn't afraid of anything

so:
where X is "Halo"
y is "shoots aleins"
z is "afraid of anything"

X does y
X does not z

Therefore:
X is a pretty cool guy


Allow me to divulge the utility of the madlib formula:

I think __(subject)__ is a pretty cool guy/girl. s/eh __(action)____ and doesn't afraid of anything.