You know what everyone's least favorite part of the toilet paper is? The middle. So do you know who wants TWO middle pieces? NO ONE. Everyone at one point or another has been forced to use the middle cardboard in place of toilet paper. It's not a good situation, but what can you do when you realize that you're completely out? It's the only way. It's still the worst.
Are you the type of person who spends a lot of money on toilet paper, or you the person who gets the one-ply-gets-disintegrated-in-the-wind type of toilet paper? In an emergency situation you buy what you can buy, but it's always best to spend a little bit more. Your butt is a very important part of you. You need to treat it extra special so it doesn't turn on you later in life.