I wouldn't scare him out either. When the dog is with your others call the other pet and love up the other dog. Treat it and all. Pay no attention to the scared pup. Same in woods. Ignore it. Reward those that do as you want. I would continue to kennel the dog with a dog I intend them to hunt with. It is possible it may never come around. I threaten to part ways with the one I have every time he gets loose at home. Then we go hunt and he does good even letting me catch him. At home tho it sure is a challenge.
Shotgun
Arkansas
Thanks for the advice, I'll try it from now on.