Am i like hunted??

ok so i was alone at my friends last night cuz she went to wendys and i was smoking out the window and i heard a guy whislting then it faded and i saw no one this was at 12am then like 10mins ago i was at my house smokin outback in the dark and i heard the same thing.. then it faded and no one. it was the same whistling sound same song and same voice... no one is awake eather wtf is going on?????