(1) A person commits the offense of assault in the third degree if he:
(a) Intentionally, knowingly, or recklessly causes bodily injury to another person; or
(b) Threatens another in a menacing manner.
(2) Assault in the third degree shall be a Class I misdemeanor unless committed in a fight or scuffle entered into by mutual consent, in which case it shall be a Class II misdemeanor.