I had success with one mean rooster,don't expect him to not attack you at first,yes it does hurt really bad when he gets you with a spur just have patience,first thing I did was carry a stick large enough,then I let him get used to me,I was the only person that went inside to give the coop water and food,that's the only way for him to gain your trust,if there is different faces every day he won't get used to someone,did it for around a few weeks,I got to the point where I didn't have to carry the stick,he still attacked me if I gave him my back so I carried treats,drop them in the ground if you see him about to charge you,if that doesn't work,hit him softly in the comb to show him who is in charge,it will happen a few times,don't expect it to work in like 1 week,it takes time just have patience and you will gain his trust,it took me around 2 months to gain the trust of mine,he is now comfortable around me,tips:if the hens are comfortable around you it will get easier since he will know that they trust you,if they are not, there is a high chance he will see you as a threat,try to handle him every day if you want it to work faster.and no I did not change how the rooster sees people,he trusts me and I know he won't attack me,yes he still sees people that he doesn't know as threats and yes,he will attack them.look at it like a relationship,your partner is the rooster and trusts you with things like handling a hen in front of him.he will not trust other people he has never met before.if you have kids let the rooster get used to you,then bring out the kids but make sure stay close to you,as time goes he will get used to them too.