Anderson, the stickup youth who operated extensively on the north side, choosing women for his victims, is but 23 years old.
Luis grunted with satisfaction—this might be only a stickup, but he was getting action faster than he'd expected.
To attend strictly to one's own affairs; not interfere with others; be single-minded: I'm not a personal confidant. I stick to my knitting
[1970s+; perhaps fr the indefatigable knitting of Madame De Farge in Dickens's A Tale of Two Cities]