I agree with JP, whenever I shoot a larger amount of rolls in a single day, it's usually in the same location. I don't photograph the same exact thing, maybe the same subjects, but things change, people move, etc. Most of the time I find myself photographing 8 rolls of film on a single street corner in a time frame of about 8-15 minutes. It dosent ever matter where I am, if things are moving, it can get interesting. There is a difference however between observation and intention, and simply trying to get a higher number of frames for security. On the contrary, I work better knowing I am risking everything.