Ellen is, of course, quite right. I am far from an expert on the subject, but every single guide I've seen recommends that regardless of your level of expertise (or Dex score, as the case may be), when someone pulls a weapon and demands your valuables, you should absolutely give'em up without question or hesitation.

Actual violence (not boxing or judo or wrestling - actual violence) is, by its very nature, unpredictable. One should always assume that, in any instance of actual violence, there will be unanticipated factors that could result in one becoming dead or permanently disabled. As such, it is to be avoided at quite literally all costs.

Oh, and in case it isn't clear from body language and facial expression, Jamie is being facetious in panel 4, there. He has not had any fun tonight.

Poor little guy.