I kind of feel stupid asking this because I'm pretty sure this might be a pretty common horse behavior that every horse person knows about and how to handle, but here I go:
My horse does this thing where he takes my clothes and skin in between his lips. It's kind of like he's biting me with his lips. Like, I can tell he's not trying to hurt me but it's extremely dangerous. He has pinched me with his teeth before and it hurts. I'm not quite sure what kind of behavior this is because he's not doing it in a threatening, "back off" way (with his ears pinned back and stuff). I've seen horses play with each other doing kind of what he's doing with me and I'm wondering if maybe he's trying to get me to play with him or something? I just moved him to a new stable about a week ago and he doesn't seem to like the other two mares there very good. Is he wanting a friend to play with or something? Lol I don't know just throwing ideas out there. I do know that he was fed a lot of treats by hand before I got him and I continue to give him treats sometimes because even though I shouldn't sometimes, I'm a sucker & a spoiler of all my pets :P
Anyone know how I should approach this? I need to teach him it's not acceptable to do with humans but I'm not quite sure how I should do it. Please help.