The other day, I used YouTube for something I never thought I would: to learn something. Specifically, I wanted to learn how to fix a leaky shower knob. In the end, all the tutorials didn’t explain anything properly and proved useless. This video below, however, shot by Todd Barry, has got to be the definitive “how to” on re-filling your liquid soap dispenser. But take warning. Watch this only if you’re already a fan of Barry and you’re not prone to motion-induced vomiting.