We have considered the record and briefs and find there is competent substantial evidence to support the factual findings of the trial judge. We will not substitute our judgment for his. Rolland v. Thompson, Fla.App. (1st), 305 So.2d 239 (1975); Merritt v. Williams, Fla.App. (1st), 295 So.2d 310 (1974); Southern Convalescent Home v. Wilson, Fla., 285 So.2d 404 (1973).