I don't think it happens all the time. My last 4 clutches have all been non strikers. I had one incident when I had to cut the paper towel roll hide that one pied hatchling refused to come out of. When I got her out she was upset and tried to tag me and missed. I picked her up and she began to cower with her head down in her coils. What you can do is pick each one up and cup your opposing hand over them. This is a form of calming and dominating a hatchling without scaring them. They actually feel the warmth and security of your hands. It's a threefold benefit. The other thing would be to double check the temps and humidity of your tubs.