ITA - it's not about standing there asking them to please not run over you - it's about standing tall and TELLING them they do NOT want to even THINK about it.
AND It's about the skill and intelligence to know that boundaries have to be established, you have a personal space and nothing should even think about coming into it..
My stud actually fell on his knees while trying to avoid getting into my space, he was focused on something else, then saw me, went "Oh Crepe" and in the ice managed to fall over.
Scaredy Cat Emmy, threw in a huge great spook towards me when I was leading her, but managed not to get in my space, I was so impressed I though I was toast, but she had respect and somehow managed to land on solid ground instead of squashy human.
Both cases things happened so quick that I didn't actually have time to do anything sensible, just was lucky that, no not lucky, no luck involved...
From the moment they both set foot on the property, from when anyone sets foot here, they need to know I am the boss, I can usually bluff it by being assertive, but if I need to physically back up an early challenge I will.
In real life there are no magikal empathetic black stallions bonding with you, there is just lead mare, and I AM IT!