No actual CCW instructor would ever teach “shoot to wound.” You always shoot to stop the threat and you never resort to the firearm unless you have already met the condition where the use has been determined unavoidable to save life.
If you shoot someone in the foot maybe your life wasn’t really in danger...
And in every statement you make in court (not to police when arrested, say nothing) you say “I shot to stop the threat” nothing else. Never elaborate.