See also Gustafson v. Gervais, 291 Minn. 60, 189 N.W.2d 186, 190(3) (1971). 92 C.J.S. Vendor and Purchaser ยง 292(b), p. 172 (1955), citing, e. g., Cancienne v. McGovern, 325 So.2d 618, 620-21(3) (La.App. 1976) (where owner leased and promised to sell to tenant but subsequently repudiated that promise, tenant could recover for improvements because "under such circumstances courts should apply the moral maxim that no one ought to enrich himself at the expense of another"); Alexander v. Cleveland, 79 So.2d 852, 855-56(8) (Fla. banc 1955); Miles v. Graham, 7 Ill.App.3d 17, 286 N.E.2d 497, 499(3) (1972); Tompkins v. Sandeen, 243 Minn. 256, 67 N.W.2d 405, 409(8) (1954); Abraham v. Harvey, 245 Miss. 449, 147 So.2d 639, 644(8) (1962). Since specific findings of fact were neither requested nor made, we cannot be sure that the court based its judgment on the foregoing theory.