A bottle of wine exploded in my wine rack. Was there something wrong with the wine?

Hello there! I'm Dr. Vinifera, but you can call me Vinny. Ask me your toughest wine questions, from the fine points of etiquette to the science of winemaking. And don't worry, I'm no wine snob—you can also ask me those "dumb questions" you're too embarrased to ask your wine geek friends! I hope you find my answers educational, empowering and even amusing. And don't forget to check out my most asked questions and my full archives for all my Q&A classics.
Dear Dr. Vinny,
I purchased a bottle of raspberry wine, brought it home and placed it in a wine rack in the living room. Five days later, the cork exploded out, spewing the contents all over the furniture, walls and carpeting. I didn't know it was carbonated—it's not labeled as "sparkling wine"—and it just had a standard cork with a foil seal instead of a wire cage. Was there something wrong with the wine?
—Paul, Olalla, Wash.
Dear Paul,
My guess is that the bottle exploded because it was under extreme pressure, probably because the wine inside the bottle wasn’t finished fermenting before it was bottled, or it started to ferment again inside the bottle. Carbon dioxide is a byproduct of fermentation, and it can be pretty intense—if it has nowhere to go, it can put pressure on the cork in the bottle, causing it to explode.
I think you should let the producer know—exploding bottles can be dangerous, let alone messy. It’s not your fault, although storing it in a warm space might have sped up the process.
—Dr. Vinny