/face palm.

i actually know a for really real ninja

he was a trouble maker as a teen who cared more about girls, weight lifting, and motorcycles than anything. his dad said he needed direction and put him in a karate class. by the time he graduated high school he was a blackbelt and on his way to vo tech to become a motorcycle mechanic. after a DUI, a few bar fights, and one failed bike shop business he decided he needed direction in life.
he then went down to the local navy recruiting station and signed up. 18 months later he was proudly wearing his gold trident as a navy seal.

he sneaks around in the dark, people think he can disappear at will, he has inhuman speed and precision in hand to hand fighting, stays underwater for hours at a time. his endurance is stuff of legend, and his pain tollerance is uncanny.

yep, you want to be a modern day ninja? join the military and get into special forces.

ninjitsu IS dumb fu.