Water Sense Nonsense

An actual conversation with Pierce:

Pierce (upstairs, should be brushing his teeth but the water is just running, yelling downstairs to me): Mom! I need help with brushing my teeth!
Mom: No, you don't! You can do it!

Pierce (three minutes later, water still running): Mom! I need help! I'm wasting water!
Mom: Then turn off the water while you brush!
Pierce: Awwwww...Why?

Welcome to my world.