There's a popular perception that a successful heist can set you up for life, but that's almost never the case. Most robberies of neighborhood banks yield an average take of $2,000.
"The big score is a big myth," Rehder said. "That's something that the movies have promoted. Banks don't carry that kind of cash."
But romantic notions of crimemay persist for some people. Authorities said they fear that people who have fallen on hard times will admire robbers like the one they're calling Grandma, just as some of the people who were hurting almost 80 years ago viewed John Dillinger as a folk hero, robbing the institutions that they blamed for their problems.
In the end, though, the story is rarely a happy one for the robber. She may not get gunned down like Dillinger, but if the Grandma Bandit strikes again -- as authorities expect her to -- her already high chances of getting caught will increase markedly.
Three out of four bank robbers land up in jail, the highest capture rate among perpetrators of all major crimes.