Ha. My cousin has like two dozen chickens, and they follow her to the coop each night like soldiers. She did lose a few along the way, and maybe it was for the best. I'm definitely not going to be chasing chickens down the street. If they want to strike out on their own, then I wish them all the best.
I'd rather 2 obedient chickens than 4 rebellious ones. If it takes some selection pressure, I'm ok with that.