Hunting fail- deer licks the barrel of the gun

Deer licks the barrel of the gun while we were out target shooting. Fearless deer walks up on guys doing target practice and fearlessly licks the barrel of the guys 308. The deer isn’t deaf, just has no fear. The fawns mother was killed by a car and the fawn was dropped off to a licensed rehabilitation specialist, the deer lived in the barn until it could go back into the wild. This is the first time we ever saw it out while we were shooting, and couldn’t believe it didn’t run away!! Dinner(deers n