My RIR (Rhode Island Red) cockerel was the sweetist rooster ever. He'd let you hold him, he would NEVER hurt his hens or his owner, and he liked to sit in my lap. But when he turned 3 months he was VERY mean. One day he pecked and bloodied my little Polish pullet's head. ( who's only 2 1/2 months old and very small) He also pecked my knuckle on my left hand and it bled a little. Bottom line being roosters should only be kept for breeding purposes. Not companionship.