In regard to the precise issue of consent or permission, the California courts have uniformly held that the element of permission is necessary to a determination of liability under Section 402 and is a question of fact to be proved at the trial. Irvine v. Wilson, 137 Cal.App.2d Supp. 843, 289 P.2d 895 (1955); Mize v. Jorden, 116 Cal.App.2d 301, 253 P.2d 702 (1953); Scheff v. Roberts, 35 Cal.2d 10, 215 P.2d 925 (1950); Reed v. Cortez, 88 Cal.App.2d 416, 198 P.2d 911 (1948); Hobbs v. Transport Motor Co., 22 Cal.2d 773, 141 P.2d 738 (1943). This general rule is further stated in 8 Am.Jur.2d ยง 605, at p. 157: