Dogs step in to help protect villagers from ‘Man-eating’ tigers
Tuesday 27 January 2009
http://www.zsl.org/conservation/news/dogs-step-in-to-help-protect-villagers-from-man-eating-tigers,555,NS.html
Stray street dogs in Bangladesh are being trained to deter prowling tigers from village borders as part of an innovative conservation scheme.

Somewhat related video.
www.guardian.co.uk/environment/video/2008/sep/23/tiger.hunt