I cannot recall in 39 years ever putting a climbing rope in my mouth. Can't imagine the need; if gizmoes require it then that's one more reason to KISS. Mouths are meant for kissing and fun stuff.
I did something far dumber tho--my groundie put a knot in my bull rope intentionally, for some long-forgotten alibi of a reason; to help his grip maybe.. I couldn't untie it with my fingers and in my berserk-angered state of mind used my teeth. broke one in front that had been hollowed by a root canal; replacing it with a falsie cost $1000's and hours of discomfort and pain.
O and ignore Lumber's plea for pics; the imagination paints realistically enough.