My dad and I have just brought this Stallion from a friend. Yesterday afternoon we put one of our mares to him. This mare was very good with stallions (doen't kick ect). We put her in the round yard and put him in the outside one for them to meet ect. 1h later we tied her up and let the stallion sniff and carry on, when he jumped her he done it very agresivally, he grabed her neck with his teeth and was litually taking chunks out. Dad got him down - eventually and took him away. In the end she has this huge chunk out of her neck!! Its all infected and everything, dad doen't know what to do with him (stallion). Could you help??