depends... If he is attacking me to get my wallet that is one thing... I would even go so far as to say that I wouldn't give up my wallet voluntarily. If he is willing to face a firearm to steal then he is probably rabid and needs to be put down... just as a burglar hitting a home in the daytime is... sorta like seeing a raccoon in the daytime raiding your garbage can... best to not take chances.
Why is someone stealing from you? Is this someone we want running around free? What if he kills or severly injures the next person he robs? How would you feel then?
lazs