The title itself is a clever double-entendre. In espionage slang, a "comeback" is a retaliation or a follow-up hit. In business, it refers to a customer's right to complain. In these stories, Frederick Forsyth presents scenarios where the protagonist ensures that there is no comeback —no revenge, no refunds, and no happy endings for the villain.
A fan favorite. A medical student working in the rough parts of London gets caught in a cycle of revenge with a local thug. To escape, he takes a job in Ireland. The "no snakes" myth (that St. Patrick banished all serpents) becomes a clever biological weapon. It is arguably Forsyth’s most famous short story, blending pharmacology with cold fury. No Comebacks Frederick Forsyth.pdf
"Your timing is off," Marsh said.