Ethan: I have to go potty.
Me: Okay, pull down your pants so you can go.
Ethan: I can't.
Me: Well, you need to try and then I will help you.
Ethan starts pulling down his pants and underwear I help him a little bit. He gets them both down successfully.
Me: Good job, now you can take them the rest of the way off.
Ethan: Why am I taking my clothes off?
Me: Because you said you had to go potty.