I'm not being a smart alec but I am being hard core when I say, I should post the video of my horse when he first foundered.
It's a good reminder of why the grazing muzzles need to on horses that have foundered in the past or are easy keepers and will probably founder at some point in the near future.
Anytime I start arguing with myself about not putting the muzzle on, I pull up the video
And then there's all the extraneous work and money that goes into rehabbing that horse from founder.
So, don't even ask
By the time the OP reads this, that muzzle had better be on the horse, unless it's pouring rain and 50 degrees