by 
I’ve been catching up on my Science Friday podcasts, and I heard an interview with Barry Estabrook, author of the recently-published Tomatoland: How Modern Industrial Agriculture Destroyed Our Most Alluring Fruit. He tell a story of when he was following a tomato truck in rural Florida in the winter, and a tomato fell of the truck, almost cracked his windshield, and still stayed as hard as a baseball.
I really want to read the book but I’m a little scared.
You really should check out the interview: http://www.sciencefriday.com/program/archives/201108265
You’ll start telling restaurants to “hold the tomatoes” in winter, just like I have.