I have a coming 3 year old dorset ram that I bought in November with my small flock. He is halter broke and easy for me to handle. I had him headbutt me once and I went after him and he's been good since. However, I borrowed him to a friend for a couple months and he was with her ewes. I went and got him after she said he was unpredictable to the humans. And headbutted her child. I warned her that animals are unpredictable before hand and she has a new flock for him so it might crazy right away. When I got there he came right up to me and let me put his halter on and lead him out. He's been home now and he is loving his bachelor life. Is him headbutting at her place a reason to cull him? He's been home a month now and I haven't had him even try but he's not with my ladies.