"Want some cinnamon toast for breakfast?"
"No, I already got mine cereal and bowl."
"But honey, we're out of milk."
"That's okay. We can just make some milk."
"No, we can't. We have to buy it."
"Because milk comes from cows. We don't have a cow, so we have to buy our milk."
"Soooo...let's buy a cow."
It makes sense, really. But I wasn't going cattle shopping for a single bowl of cereal.