Well...a BB gun doesn't hold the same danger as an actual powder driven gun. They can ricochet and hit someone in the eye or something, but that's not in the realm of "danger" to me. Since the pellet actually lodges in a bird's head while the head is against a solid surface, it is highly unlikely there is any danger whatsoever in the practice.
Beekissed, you're gonna shoot your eye out!
Sorry, I have seen A Christmas Story one too many times.