You're in the grocery store and no longer care about the looks you get for buying only metamucil, vegetable oil, and apple cider vinegar.
You bring your horse to family functions because he's family too.
You've had your boyfriend/girlfriend try your horse's grain because you've tried it and it's not terrible.
People know sitting in your back seat or putting anything in the trunk means they'll be removing hay for weeks.
On the phone with the vet saying 'so I just pat him on the butt and stick it in fast' no longer embarrasses your friends, and said friends explain to others you're talking about horse stuff.
The coffee shop has your horse's coffee and pastry order memorized and knows when you order it based on how you're dressed.
It's no longer embarrassing to be caught elbow deep in sheath and instead of calling a vet people ask you to clean their horse's as well.
You work nights so you don't waste good riding time working during the day.
No one asks what you want for holidays, they just get things for your horse.