Dude, what's with that?

So waaaaayyy back in April my family came to visit. Well my family are foodies, which we love, because we get to eat stuff other then mac and cheese when they come to town; which also means leftovers. Yum! We're usually pretty good at eating everything before it goes bad, but every once in awhile things meet the trash can. Well this was going to be the case with this tomato, but then I noticed a small hard bump just under the skin. Me being me I grabed a fork to puncture the skin and see what it was. This is it....

I don't know about you, but I've never seen a tomato sprout before. Weird.