This is an entry for a 'Random Ninja' art competition. You had to go and get a 'random ninja' from this one random generator site, and then do your interpretation of it. Here's mine...
This plucky ninja is very short and has a broad-shouldered build. He has a wide chin. His hooded eyes are lavender. He has charcoal-colored hair worn in a style that resembles a horse's mane. His outfit is in shades of blue. He uses an odd form of martial arts that emphasizes dodging one's opponent and using submission holds. His preferred weapon is a katana (which seems to be almost alive). He is skilled in comedy. He can teleport.
While I didn't show him actually teleporting (which would've been hard anyway), I figure that's how he managed to get behind his opponent, put him in that obviously uncomfortable elbow hold, and sit on him. The purpose? Why to tell him a joke, natch... those samurai never /do/ appreciate a good laugh, the grumpy bastards.
"...So /anyway/... a kitsune and an ogre walk into a bar..."