I have a problem. I have a working bull bitch, great little worker, game, strong and effective, shes only in her 1st season as shes only 9 months old (I know, I've started her very young lol) but my red fell terrier got locked on her, i brought him out to show my friend, turned my back to get a cigarette and he was locked to her. If she is pregnant can i expect good working pups or are fell/bull crosses useless? I would appreciate everyones opinion.