After deficating, one wipes his/her anus and notices that the toilet paper is completely clean. No need to wipe any further, that pooper is clean.
You know I really hate it when I have a case of the squirts because the toilet paper runs out quick. But when I do get them I know a bonus wipe is just around the corner. I just say to myself, "What goes around comes around my friend, you'll be repaid in time..."