Something Very Strange Happened Yesterday

[samosa4u]

So yesterday, which was a Sunday, I was sitting in the living room and looking out of the window. Then I saw some guy, probably around 25 years of age, walk past my house on the sidewalk very, very slowly and then cross the street. He took a few more slow steps up the sidewalk - now across my house - and then just stopped. He did not move for 4 hours. He was just staring at the houses, and watched cars and people go by him. The whole time he did this, he just didn't move from that one spot on the sidewalk. I have never seen anything like it before. Now he didn't break any laws - no vandalism, no trespassing or disturbing the peace, but his actions just freaked me out and I didn't know what to do. Was he mentally ill or high? I don't know. If he comes here again, then do you think I should approach him?