"He'd wait there forever if I asked," Sparrow said. But he took her point well enough and gave her a firm nod. He retreated a few steps, careful but not too slow. No need to look like he was feeling his way back, but also no need to break his neck on the subway rail ties. Death came in enough forms without stupid accidents.
Lifting his hand to his head and giving her an imaginary tip of the hat, he said, "Have a good day, estraneo. If we meet again, then I shall count us friends. Until then, enjoy wiping out the pest problem."