When stuck on a building site with no toilet paper someone who needs to pass solids could use the carpenters cut. It is a process of spreading your ass cheeks wide and then letting them go back together as the solid is passed. Thus creating a carpenters cut and removing the need of toilet paper.
Carl "I have no toilet paper and need to go number two to relieve myself. I am in a silight situation what ever could I do"
Stephen "But Carl you can use the carpenters cut and forget the toilet paper"