This is fairly normal behavior, though. They tolerate us because we bring the food but the moment they think we might be after them, they're off and running.
Yes, but most of mine will squat when I reach down at them, and I can then grab them if I need to. The two Australorps are the most flighty, and tend to run instead of squat.
My two Brahmas, on the other hand, beg to be held on my lap! When I squat down to fill the food bowls, they'll peck at me until I cuddle them under an arm. Then they'll make little happy noises and fall asleep.
My Sussex is always the first of the flock to come running when she sees me, so I'd been hoping she would teach the chicks to do that too.