If in the process of being stolen, though, for me it would depend upon when/where. If in the middle of the desert where life depended on surviving days of 100+ temps, then I'm fairly certain I would stop the robbery and (if required) defend against any subsequent act to threaten our lives with the degree of forced required to protect those lives. If just in the driveway in town, very likely I'd call police and document the perp/act as best as I could. Generally speaking, I think that life's not worth a replaceable item. IMO, no matter what steps are taken, or what additional crimes the thief intends to commit, life is worth defending at all times.