- In Die Trying, Reacher is trapped in the back of a truck whose ceiling was hit with a shotgun blast. He gets bored and counts the individual holes the pellets made (there are one hundred and thirteen), which leads to this numbers-related spiel:
One hundred and thirteen was a prime number. You couldn’t make it by multiplying any other numbers together. Hundred and twelve, you could make by multiplying fifty-six by two, or twenty-eight by four, or fourteen by eight. Hundred and fourteen, you could make by multiplying fifty-seven by two or nineteen by six, or thirty-eight by three. But one hundred and thirteen was prime. No factors. The only way to make a hundred and thirteen was by multiplying a hundred and thirteen by one. Or by firing a shotgun into a truck in a rage.
- In Tripwire, Reacher has just returned to New York from the Florida Keys, investigating a detective who'd come looking for him. The most sensible thing to do, he reasons, is to check the yellow pages, but he doesn't have a very convenient start.
But the yellow pages showed no private investigators called Costello. Plenty of private Costellos in the white pages, but no professional listings under that name. Reacher sighed. He was disappointed, but not surprised. It would have been too good to be true to open up the book and see Costello Investigations—We Specialize in Finding Ex-MPs Down in the Keys.
- Later, Reacher gets taken clothes shopping. As it happens, he's not very versed in clothes shopping.
Reacher: There was a place I went in Chicago. I think it was a chain store, short little name. Hole? Gap? Something like that. They had the right sizes."
- As of Echo Burning, Reacher hasn't gotten much better on this front. The Texas town of Pecos is now known as Pecan.
- About two-thirds of the way into the book, Reacher finally spends an evening with Alice. The narrative has been describing Alice in physically flattering terms ever since Reacher laid eyes on her, which is the standard for girls he's attracted to. And then she invites him over for dinner. Only once Reacher is over there does he discover that Alice wasn't planning on much. The whole exchange is a brilliant back-and-forth, but then it ends on this note:
"So it doesn't bother you?" she said. "That it's just a meal with a new friend and then back to the hotel on your own?"
"I never thought it would be anything else," he lied.
- When Alice and Reacher are looking at Carmen Greer's medical reports for evidence of domestic abuse, they start at the beginning. The narrative launches into a long, immaculately detailed paragraph about the circumstances and procedures of her daughter Ellie's birth, from gynecology to fetal monitors to times of day for the process of labor, all concluding that Ellie was born perfectly viable — and then it helpfully notes that the birth report did not mention facial bruising, or a split lip, or loosened teeth.
- In Bad Luck and Trouble, Reacher's comments on 'New Age Defense Systems': "What kind of name is that for a weapons manufacturer? Like they kill you with kindness? They play pan pipe music until you save them the trouble and slit your wrists?"
- In The Hard Way, Reacher and Pauling try to find out who bought a chair they found. They eventually locate the correct vendor, an old man running his own store, who offers to tell them what he knows in exchange for five dollars. Reacher offers him two-fifty plus the chair.
Old man: Four bucks and the chair.
Reacher: Three bucks and the chair.
Old man: Three and a half and the chair.
Reacher: Three and a quarter and the chair.
Old man: (no response)
Pauling: Guys, please. (Pauling gives him ten dollars and the chair)
- In Never Go Back, Reacher talks about his primeval urge to wander and spread his DNA around like the Vikings. His companion, a Girl of the Week, tells him to shut up; he has a paternity suit waiting.