My boys funny

We're going for a drive. Matt and Harper are joking around, Matt turns to Harper and says, your a funny dude. Harper replies you're a funny doodle, harper funny doodle.
Matt's sawing wood, Harper and I are watching. Harper reaches over and touches Matts leg and tells him Good sawing daddy, well done daddy.

No more screaming, no, no, no. When Harper doesn't want to do something he gives me a simple long drawn out, I cannnnn't.
I've always sung to Harper. a lot. Now he sings but if Matt or I join him he shakes his head, No don't sing mummy, don't sing daddy. He is two. We have a problem.