What we have learned from Naruto. This was funny, from the link.
# Every single problem can be solved with violence and emotional flashbacks.
# You must always tell your enemy what your super secret technique is going to do to them.
# In order to do a technique, you must always announce it in a very loud and clear voice.
# Do not call a fat kid "fat". He might have steroids that can give him butterfly wings.
# The most efficient way to carry out covert operations is by being dressed in bright colors and running around on trees.
# Projectiles of any sort are useless. There is no such thing as firearms.
# Falling from ridiculous heights at terminal velocity has no ill effects.# When pressed into a corner, close your eyes and have a flashback.
# Child abuse and training are the same thing.
# Fire is ABSOLUTELY HARMLESS. Yes, even to grass, ice, bug and steel-type people.# Dolls, gigantic fans, flutes, sand and pieces of paper that explode make very good weapons.# You are helpless to turn the tables on an opponent as long as the cool music doesn't come on.
# On the flip side, your instincts and ability to put up any sort of fight are immediately nullified the moment the scary music comes on. If you hear Lord Voldemort's ~fight~ theme (essentially Bach's Toccata and Fugue in D Minor on steroids) you're SCREWED.
# It is common sense to send twelve year olds to do battle against professional terrorists.
# Crushes NEVER go away on their own. And you MUST have one or you're not a complete human being. Pine, you pitiful Americans, pine.
# You are powerless to make any difference without a tragic childhood to fuel your anger.# Never trust your family members, no matter how nice they seem. They are either 1: There to oppress and traumatise you, 2: There to go on killing sprees which may or may not include you, 3: Dead or 4: Any combination of the above.
# "Death" is merely a temporary condition of quantum superposition where it is unknown whether you are dead or not until finally a watcher collapses the wave function and you turn out to be alive after all. Exceptions are rare.
# Some things are just better with holes in them. Pipes, for example. And cheese. And plot.
# Ninja battles are the #1 cause of deforestation.# 90% of the world's wars, death and property damage are due to overgrown traumatized children becoming crazy supervillains and could be pre-emptively nullified by counseling.
# If anyone is even remotely good looking, they are gay, a girl pretending to be a guy, a guy pretending to be a girl, or so old that a romantic relationship would be *****. Which means that everybody is in love with everybody else regardless.
# Fillers never end.
# In all the most dire situations, you will always learn an amazing move that will instantly own the enemy.