When you wish you could start a poop all over, take your time, and make it cleaner. Saving toilet paper and unnecessary frustration.
(Person2 comes out of bathroom)
Person1: "Man, what took you so long?"
Person2: "I rushed it and then had a really hard time. I wish I could've had a poo-over."
Person1: "I totally know what you mean. Thank God we've got Charmin."