I was thinking of recording myself walking home late at night without imagery, and then giving tape recorders to different people and having them walk around late. This way I can compare the breathing and heart rate, as well as the sounds/people they might run into. 

I thought this might be interesting because, in theory, I would be more have a faster heart rate then someone like john.

I also thought of doing this by myself and simply dressing differently and having a different attitude, hence the faces. This might have to be a around 9 or 10, not as late. That way I could record peoples (mens)  reactions

Another thought I had was to do something similar with video. The only apprehension I had was authenticity. It would be dangerous for me to really go and do this by myself. Although I have been in this situation several times. The images at the bottom are me dressed differently, like with the recording, but it would be video. 

The top images are kinda a play off of being safe and being paranoid. Like when you cross the street because a creepy figure is walking towards you and then you realize it's someone you know.