<human>: I'm 21 and I live in a pretty decent little 50 and plus suburb in Florida with my mom. One day at around dusk I was walking home and decide to take a short cut behind a couple houses right down the street from where I live. As I'm walking behind my neighbors house (not on their property), I hear some guy yelling and I figured it might be for me so I turn back and see this raged old guy. I apologize and start leaving figuring he thought I was trying to rob him. As I'm walking away he threatens to shoot me if he ever sees me again and then starts following me in his car. He follows me to my house and starts trying to intimidate me saying he went to prison and hes dangerous etc. I just apologize for walking behind his house and tell him I live right down the street from him and I didnt mean to scare him. He finally drives off satasfied. 

What should I do next time I see him? I mean I live in the neighborhood so its inevitable that hell see my walking down the street or something. I figured I'd explain to him that I've done nothing illegal and I have every right to be there and if he harasses me I'll report him to the neighborhood/police. 

What would you guys do in my position?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Walked behind old conservative neghbors house (not on his property) neighbor flipped out thought I was trying to rob him threatened to shoot me then followed me in his car.