Practice your situational awareness.

[bigpaul]

having been brought up in a city i know all about being aware of your situation , i still dont like people walking up close behind me, i move to one side and let them pass, when sitting in a cafe i always sit with my back to a wall, driving i'm always aware of cars that seem to be following me, so far its just been people going the same way. at tills and cash points watch your pin number, if people get too close(my sister in law has the answer she) say's "excuse me, you are invading my personal space", it works, see them back off!