(1) Unless inconsistent with the ensuing sections of this code defining justifiable use of physical force or with some other provisions of law, conduct which would otherwise constitute an offense is justifiable when the defendant believes it to be necessary to avoid an imminent public or private injury greater than the injury which is sought to be prevented by the statute defining the offense charged, except that no justification can exist under this section for an intentional homicide.
(2) When the defendant believes that conduct which would otherwise constitute an offense is necessary for the purpose described in subsection (1), but is wanton or reckless in having such belief, or when the defendant is wanton or reckless in bringing about a situation requiring the conduct described in subsection (1), the justification afforded by this section is unavailable in a prosecution for any offense for which wantonness or recklessness, as the case may be, suffices to establish culpability.