Fight Club is about a man being so depressed with who he is in a life he regards as meaningless, that he develops a new personality, and tries destroying the known social structures as they are, to cause new world order.
I fail to see where its comedy. Now the fact that you got enough self-destructive thoughts to find it amusing he thinks about how clean a gun is when its showed into the mans throat, I find disturbing. 'now the "bitch-tits" part of it, you remember how "Bob" got his ? Just another reference to how the MC dislikes humanity and what people do in the modern society. Nothing fun about it.
Yes, I see the sarcasm...but I also see the reasoning behind it...
~ If I treat you like an idiot, it most likely is because you ARE an idiot ~