What is the generalization of why the milk curdled?

Is black considered unlucky? What is the value of vintage mushroom canisters? Can you drink white wine while using invisalign? Do res sausages contain wheat? Can you get sick from eating old molasses? What food group is caramel in? What makes a chicken not walk just lay? How many slices of orange are in an orange? Does eating grapefruit reduce the effectiveness of furosemide? How much does a cup of noodles weigh? Is it true that most stores like Publix and wal-mart have tomatoes with petroleum based wax on them? Is hubba bubba chewing gum or bubble gum? May you substitute soy milk for evaporated milk? Is frozen filet tilapia cooked if only baked for 12 minutes? Is there any tinierme cheats? How does milk come out your nose? Where is captain crawfish? Who makes the gummy bears with an A on the belly? What does peter means? How many children does Paula Deen son bobby have?

What is the generalization of why the milk curdled?