Sure, a chicken will flee at the first sign of trouble. But that's because flight is a logical choice for a creature which is vulnerable.
On the other hand, if a chicken is cornered or protecting her young, they will without hesitation take on a threat much bigger than them.
Grahamnesty, like his mentor McCain, loves the accolades of the enemedia and doesn't have the sense of a chicken.
We have a small flock (two flocks, different breeds), and the free-range chickens prevail over the dogs for domination of the yard.