After the Concealed Handgun License bill passed in Texas in 1994 (IIRC) the very first self-defense shooting (and killing) by a CHL holder was a "road rage" event where the license holder in a vehicle was blocked in on an access road by traffic after a mirror-clipping event, and the other fellow was punching him through the driver's window. The antis used this as proof that all their "wild west" and "streets running in blood" predictions were true, never mentioning the fact that the CHL holder was punched so hard he lost sight in one eye. Since "serious bodily injury" is one of the factors in the justification for the use of deadly force, the legal system did not charge the CHL holder.