For more of these guys, go here [link]
This is the kind of stuff Jacob was getting up to in Japan before he met Nini. He heard about how the samurai fought demons, but was not overly impressed by how some samurai behaved, and decided to teach them a lesson.
Mind you, long before this Jacob had decided to make it his mission to punish humans for their bad behavior. Though more often than not he would trick them into behaving badly just so he could punish them...
Inspired by this lovely puppet [link]