One time i was walking around my neighborhood with one of my friends and right behind where i live there was a gully (small valley with lots of trees). We got bored of just walking around on the streets so we decided to go down in the gully. At first we were just talking about normal things but all of a sudden every hair on my body stood straight up and then everything just got really akward and we just stopped talking. every few minutes i would feel really cold air right on the back of my neck. i thought that it was just a breeze but the next morning i woke up with a huge rash on the back of my neck!!! so i phone my friend and he had the exact same thing!!!