Chickens are like a flock of Karens. They will find something to complain about. Don't worry, they will get over it. When they ask to speak with the manager, ignore them.
Locking them in the coop for a few days to train them shouldn't affect your certification. It's a safety issue and you won't be doing it for an extended period of time.
I have an electric poultry fence. Its 164 feet long, which will enclose approximately 1600 square feet. That gives each of...