You don't know what to do when you run out of toilet paper in a public bathroom. amirite?

Option A: you ask the person in the stall next to you. Option B (often less preferred): you do the gross unfinished pull up, and waddle over to the next stall

Or if your arms are long enough and the next stall is empty, you can reach under and grab some.

Or you can just use your shirt.

You pull an Elaine and hope for better results.