I do not keep roosters that I:
Need to be ready to defend myself.
Can't pick up the hens. (My hens are used to being picked up, they don't squawk.)
Can't pick up and handle readily.
It sometimes works if they're aren't very aggressive but if they are at it with a vengeance, off he goes. If by friendly your friendly means a coddled rooster, he may be too imprinted on people.