How about a warning shot into the ground or over his head? I bet that would have got him moving! If someone knows you are armed they are much less likely to mess with you. Many criminals know that the police are going to require a certain amount of time to get there...in many cases plenty of time to kill you and make their escape, but a person armed with a gun and lot's of attitude? Most likely not going to chance it. I would try to clean up any possible hiding areas and invest in some motion detector lights on the house. I dont know how expensive they are but even getting one per pay period would help. Thieves do not like well lit yards. Glad you are safe! Also, maybe a phone call to the DA in your area to find out *exactly* what is allowed to protect yourself and your property.