John and Daybreak are weird.
Daybreak is my brother's retired cowboy mounted shooting horse, a 27 year old Morgan gelding. John and Daybreak's stalls are right next to each other and they can hang their heads over the stall doors.
In the morning, while they are waiting to be turned out in the fields, the boys bite each other under their muzzles. It is very strange.
Daybreak has bitten all of John's whisker hairs off the underside of his muzzle so that it looks like I have clipped him.
I don't know what the fascination is with biting each other in the face, but I hope this is a passing obsession!