I'm going to upset a lot of people here but such is life.
My story -
My youngest is a rising 3 yr old, she has a very superior/arrogant/pigheaded attitude and can be quite aggressive she acts like an alpha mare though she is bottom of the pecking order. Most call it "Little dog syndrome"
Anyway she use to be quick off the mark with both ends, teeth and talons! If I growled at her or tried to push her away she would promptly turn her butt on me and line me up!
If I was the size of a clydie I would have stood there and taken it and then given it back, unfortunately I'm not, so I introduced Polly into our stable.
Polly??!! I here some say, well Polly is a foot long piece of 2 inch poly pipe who acts as my substitute hoof! He doesn't hurt anymore than a hand (only ever used on fleshy parts of her body) but he makes a fabulous sound. This has solved my problem of getting lined up as Jnr would get a smack on the butt as soon as she would turn it on me.
I still have to contend with her teeth but I tend to carry poly under my arm so that Jnr can see him and I will growl at her if she even thinks about it, and she grudgingly allows me control.
I should mention that these problems have stemmed from being extremely protective of her feed and have escalated. It is not only directed at me but also the dogs, kangaroos and sheep. I've seen her pick up a full grown sheep in her teeth and throw it 3 metres because it tried to steal her food
I'm sorry if I have offended anyone with my methods, but I had a fairly bad case on my hands and personal safety was pretty high on my priorities