The trial judge correctly directed a verdict for the appellees because the evidence ■conclusively shows that the act of another constituted an independent, intervening, efficient cause of the accident which was not reasonably foreseeable. See Rawls v. Ziegler, Fla. 1958, 107 So.2d 601; Lingefelt v. Hanner, Fla.App.1960, 125 So.2d 325.

Affirmed.