Can a horse just "turn mean"?
I've come so far with Lakota over the past months and we were really starting to get things figured out but now I feel like we've taken so many steps backwards that we're worse than when I got him.
Yesterday, I was just holding him waiting to lunge him and he bit me. He broke the skin through my sweatshirt and it stung. I slapped him on the neck and backed him up a few steps. Then I was on him and he started bucking again, something he hasn't done in at least 2-3 months.
Today, I took him out just so he could run around in the indoor for awhile before the storm came and I brought his Jolly ball with us so he could play with that. Lakota was acting like he was confronting me/challenging me. I would try to get around him and he would block my movements. Then he would get really close to me and try to bite me, so I grabbed his halter and tried to lead him away and take him back outside but he kept trying to bite me and then he spun around me. I tightened my grip on his halter and he tried to rear up but I was standing right against his front shoulder/chest so he didn't but I felt him get light in front. I don't know what to do with him and I can't figure out why he's acting like this. Any help would be appreciated greatly.