My Brother Says Crazy Things

Or: Things My Brother and I Talk About That He Doesn't Understand
  
For example: Dragons.
My brother says that dragons are dangerous.  Duh!  I think we can all agree on this point.  What he is missing is that dragons evolved to be big, scary, and hard to kill, so they don't need to be aggressive.  I don't mean aggressive like "Food! Nom nom nom."  I mean aggressive like "How dare you enter my country!  Die, ignorant swine!"  Human aggression.  Dragons don't need that.  And why would they?  They're big, scary and hard to kill.  He just couldn't get that through his head.
Not that dragons can't be aggressive.  It's just that I think it's probably a learned thing, not a survival instinct, like it is for us humans.  Humans are paranoid.  Our aggression is a survival instinct.
And I'm talking European dragons here.  Not Asian.  That's a whole different thing.  Because dragons are scary.  As stated above.  Twice.  Dragons are giant, scaled, fire-breathing, 80 ft long, flying creatures, and they are built to scare the living daylight out of anything that sees them until all our human brains can think is "RUN AWAY! RUN AWAY!" and then we all panic and scream and don't notice that the dragon doesn't even attack.
Whereas dragons, upon seeing us, will probably think "Oh, look at this strange, fur-less, pink bag of flesh come to poke me with a shiny stick." and then returns to thinking about philosophy or lady dragons or possibly even goes to sleep, because really, what are we going to do except declaim grandiose speeches at it and try fruitlessly to kill it?  I mean, if the dragon doesn't expose it's soft underbelly to us, there's not a lot we can do.  So dragons don't need to be aggressive.  That's all I'm saying.  Really.  My brother just didn't get it.

Another thing he didn't get: Ninjas and Samurai.
My brother seems to believe they don't exist anymore.  He even said so.  I laughed so hard when he said this.  Then I asked him why he thought that.  He went through this whole thing about them not having jobs anymore and I just laughed.  He also thought that since there was no proof of ninjas that that meant they didn't exist anymore. 
To this I replied "Dearest, darlingest brother, the whole point of ninjas is that they don't leave any proof!  If anything, the lack of proof is proof!" 
And he said "That makes no sense!" 
And I said "You know nothing."
And I am right.
His whole thing about samurai was along the same lines: no jobs, no samurai.  I said "Brother, there are schools for samurai skills."
And he said "Do they walk around carrying swords?"
And I said "No, that would be insane."
And he said "Then there are no samurai."
And I said "They reenact battles, probably, like there are Civil War Reenacters and WWII Reenacters."
And he said "WWII!"
And I said "Yes."

Which brings me to my next point.  WWII Reenacting.
He couldn't get his head around it.  I said "Brother, it's very carefully choreographed.  They get the uniforms, the weapons, and the troop movements and they meticulously plan it so it all goes well."
"What about the planes?"  He said.  "They had planes in WWII."
"They do the ground-troop movements."  I said.  "Planes didn't drop bombs on the troops."
"But they went ahead and bombed cities."  He said.  "That's what the Blitzkrieg was all about."
And I said "Yes, I know, but the reenacters only do the ground troop movements."
He kept talking about planes.  Eventually, I said, "Brother, I know a WWII reenacter.  Do you want me to call him and have him explain it to you?"
He refused, pretended to get it (or actually got it, I don't know), and left.

What do they teach in schools?