Supermarket ground pork. It's a long story, but on the other hand, it's also boring:
Heavy books in backpack to return to library. Forgot about them till I got to the supermarket. Bought less stuff, because limited room in backpack. Dropped off books at library, food at home. Hmm, if I have to go back out anyway, why not go to Chinatown and get cheaper pork? Hey, it's so cheap, let's get extra and make a big pot of ragu with my discount tomatoes. So now we have enough ragu for 3 or 4 nights of no time to cook, and 70-something meatballs for a dinner party tomorrow.
Okay, now 60-something meatballs. Don't judge me, they're tasty.