Welcome to BYC. Glad you decided to join our flock. Drumstick diva has given you some excellent advice. You don't want to risk an aggressive rooster injuring someone, nor do you want to breed that kind of aggression into your flock. If you need a rooster to fertilize eggs for hatching, you can always find a gentle one among the droves of roosters that are waiting to be re-homed. Please feel free to ask any questions you may have. We are here to help in any way we can. Cheers.