Agreed. Toe Tap the muzzle.
Some horses are more disrespectful than others and do need a little harder tap, with a simultaneous "NAH!!" <--- I have one that used to be like that --- the tallest one at 16.1H & has been with me 16 years.
I am only 5'2", I do not have strength or time to monkey-fuss around with his sometimes-bullying-pig-headed-self. It took him a lot longer than the others to figure out the Toe-tapping to the chin would stop if he stopped trying to yank the lead away from me so he could eat. Nasty person that I am, sometimes would give him the "proverbial inch to take a mile" just to see if he'd take advantage
Disciplining horses is the same as disciplining children --- some do great with just a few words - others need a hard trip to the woodshed, words, and grounded for awhile