If I was a would-be robber (not very likely at my age) I'd go to law school, run for public office, claim a fictional disability or see if I could get a government handout for not growing cotton. Or maybe all four. Not much money in muggings these days, but it seems government scams are progressivly profitable.
Of your three victims probably A would be the least risk and C would be the most potentially rewarding. Except in states where there is CCW and Kel Tec dealer.
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In a few years when the dust finally clears and people start counting their change there is a pretty good chance that President Obama may become known as The Great
Absquatulator. You heard it first here on TFL.