For me, part of the joy of hatching eggs is the hands on bit, turning, spraying, watching the temperature etc. I think I've said this on another thread but I also sing to them each time I tend them, the same song each time, any old thing, I sing the same song as they hatch, when I feed them and when I lift the cockerels out for slaughter.
I've never had one panic.
I agree with DaddyMatty, broody hens should be left to their job, they know better than us what to do!
I just love hatching eggs and rearing chicks
