That's so there is nothing in their mouth to spit out with the wormer. Some say the wormer works better on an empty stomach but when does a horse ever have an empty stomach?
Yeah, I'm short to & have the same problem with some syringes. Small hands don't help.
That's what I was always confused about? My horse eats every chance she gets.
We had slips a few times on wet or or slippery grass and as soon as she goes down she stays down and starts eating. People at my pony club thought it was hilarious.