From February 1940: At the Silver Theatre radio rehearsal, Carole Lombard and Conrad Nagel were deep in a discussion while waiting their turns for rehearsal. Eavesdropping resulted in the discovery that the conversation was about citrus fruit culture. Both Carole and Conrad had definite ideas on the best ways to cultivate crops of oranges and lemons. The discussion finally got so heated that Carole said, “Well, before we get into a fight over this, I’ll admit that maybe you’re right. After all, we have only four acres of citrus trees at our place.” Nagel looked shame-faced. “That’s decent of you,” he said, “because I’ll have to confess that on my…