By nature, hobos and ninjas aren't necessarily blood enemies, however, the ever eager ninja can sometimes mistake a hobo's distinct musk and loose jibber-jabber for the markers of a pirate. This particular hobo's family was the victim of such a misunderstanding. Hobo's by nature do not hold particularly strong grudges, and this individual's sign may seem to contradict that but NOTICE! It does not mention revenge! Hobos can be known for paranoia, and this Hobo, ignoring the fact that the ninja most definitely realized his mistake by now, is afraid the dangerous assassin will be back to finish the job.