Dishwasher Effect

When a task you enjoyed doing by yourself previously becomes less fun when you're told to do it.

Like when you decide to be a good person and do the dishes, and then your parents ask you to do the dishes. You then no longer want to do the dishes.

You: "I was going to clean my room because I wanted to, but then my mom yelled at me to clean my room. Now I don't feel like cleaning it"

Friend: "Man that's the dishwasher effect."