I went to let him and our other female pot belly back inside their outside house for bed and dinner. I got in the pen to put more straw down for them and he came charging at me, tried to hump me, frothed at the mouth, and knocked me down. I pushed him away to get off, but that made him so much stronger and upset. He's a lot stronger than me. The female won't give him any sex so, he's taking it out on me. He's like, 11 months old and not neutered. We want him and our female to have piglets. What can I do to keep this from happening? I was frightened. He's normally a sweet sweet big boy.