Turtle starts with 'C'

Grady is into asking what letter words starts with. "What does dog start with?" "D."

I was giving him a bath last night and he was asking about all the tub toys. We started doing shorthand. "Cup?" "C, cup."

He has a turtle tub toy. "Turtle?" "T, turtle." Grady looked at me then the turtle and said, "No, Dad, it's a sea turtle."