What Ninja?
If you lose a bike or a pet, a poster is a great way to raise awareness and have other people help you find it. However, if you are a highly trained assassin, skilled in the arts of stealth and concealment, a poster probably isn’t going to cut it. As the poster states, you probably haven’t come across the ninja in question, and lucky for you, because then you’d probably be dead. Best to just go about your day and pretend you never saw anything.

What Ninja?