I know it is random. My little brother was 6 or 7, he's 8 now, but he was deathly scared of hobos. He didn't know what a hobo was, but he thought that they were killing, attacking, umm monsters. Being his older brother i would babysit him, and when it was dark and it was just us, i would freak him out so much. And you guys might also have heard of a JabberWocky. He didn't like to go into the garage, because he thought they were in it, and by the way jabberwockies are supposedly monsters to him. And again i helped in telling him that there were Jabberwockies in the garage hahahahaha.