A convenience store owner has suffered several burglaries in the past few months. He is very concerned, as he believes this trend means he will likely lose his livelihood. He elects to arm himself with a shotgun for self-protection: the most recent break-in was by armed thieves. One evening, three thieves enter the premises. He shouts at them to leave as they approach the till and he brings out his shotgun. The thieves immediately start running out of the store. The store owner shoots one of them as he is leaving. Has the injured thief any right to compensation? How could the owner have better managed the risk of theft and burglary?