some common characteristics of insane troll logic (leaning towards the ridiculous) include...
-complete disregard for the accepted laws of physics
-Excessive use or reliance on fallicious arguments.
- non sequitur
-completely absurd sometimes to the point of being ludicrous
Bedevere: Tell me. What do you do with witches?
Crowd: Burn! Burn them up! Burn!...
And what do you burn apart from witches?
Bedevere:So, why do witches burn?
Villager: because they're made of wood?
So, how do we tell whether she is made of wood?
Does wood sink in water?
Villager: No. No. No, it floats! It floats!
Bedevere: What also floats in water?
Arthur: A duck!
Bedevere: Exactly. So, logically...
Villager: If... she... weighs... the same as a duck,... she's made of wood.
Bedevere: And therefore?
Villager: A witch!
"What would be nice? Hotpot? Sukiyaki? Crab is a no-no. I can't take it. Picking the flesh out of the shell drives me nuts. Why can't crabs make their shells edible? How come they didn't do anything about that during the course of evolution, might I ask?" - Haruhi Suzumiya
(Most of us can reason that crabs have shell's lest they be eaten by predators such as Haruhi Suzumiya)