Ninjas I Have Known

THERE is no place on Earth where a person can say with absolute certainty that they are not being stalked by ninjas. Common sense suggests this is unlikely, but pure logic dictates that you cannot prove a negative, and the art of the ninja is to go unperceived. I have been around the world to look for them, to shadow them in reverse, and whenever I find a possible candidate, he or she tends to deny it.