X2 what ^ said. The RIR breed is the one I get the meanest and the sweetest males from;-) Usually the most handsome best traited male that I choose to keep for breeding turns to be the meanest. It seems that I always end up with 3 boys to choose from so the other 2 get turned out to free range. Those extras are always the sweetest! No other breed has ever turned out a meaner roo for me.