Briliant Idea!!
I came across this blog the other day and I find this is such an amazing idea - put the timer on 2 seconds and see how far you can run from the camera.... I don't know if this will work in South Africa: by the time you return to the camera, the camera itself may have walked off on two feet (someone else's feet that is). Anyway, here is a brilliant shot - just check out the awesome windows in the background.
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But there's nothing stopping you from getting a friend to stand guard over it... (I might even volunteer depending on the type of camera & the area ;-)