Help! I have a 10 week old mini mule that keeps getting out of our pasture . We've added barbed wire, electric fence, tried temporarily putting him in a corral and he gets out. I have 7 acres. His mother doesn't seem to care that he's wandering. I am completely stressed out about it. I have someone who wants him but my question is , what's the very earliest I can wean? I am afraid he's going to get hurt. He's eating grass and hay, drinks water as well as nursing.