Didn't read all the thread, too tired, but I've learned this much:
Nosebleeds, while prevalent and usually drain a couple gallons of blood onto whatever is below one's nose, are never fatal, and always occur when turned on or when "accidentally" stumbling in on X girl changing or something. See again the turned on part.
A ninja with pink spray paint is responsible for anyone blushing ever.
Women carry invisible backpacks containing various humor-based melee weapons, like frying pans, mallets, spiked clubs, and other things with which to beat the main male character with.
Less armor = more lifespan.