Came home from a run and went to check on Thomas before he went to bed

Mommy: Did you go pee pee on the potty, Thomas?
Thomas: No, I didn't
Mommy: Why
Thomas: Because I went pee pee on the floor
Mommy: Why didn't you go in the potty?
Thomas: Because I don't know how, I need to learn
Mommy: Okay, we will teach you
Thomas: I will learn and then I will be a big boy, don't worry Mommy
Mommy: Okay, Thomas I know you will learn