Unless that bird's got your heart in his hand, I'd suggest you take his in yours, from the bottom of the cavity, followed by anything else that might be in there. Mean roosters often stay mean. If you really want to try and therapize him, make him acknowledge that you are in chage. That means making him submit, by petting him, holding him, or carrying him around until he gets it clear that you (and not he) are in charge. But if you have any children, or anyone else, someone who might not have the same heft and look, it's time to lead that bird by the beak to the stewing place, because he might learn to respect you and still take it out on your daughter or son. Roosters are spares for a reason in the great circle of life, and just like I tell folks there's no excuse for putting up with mean bees, there's no excuse for putting up with mean stewsters.