neb:
And for another example, try walking through the South of Market area in San Francisco. At one point a group of maybe 8-10 of us had to go through there and walked, by unanimous consensus we called a series of cabs to take us back out.
I also stayed at a hostel on 110th at the end of Centra park NYC...Harlem. Got picked up by a friend from Long Island as where I was is not safe, especially at night.