Stuff my son says - Age 4 (minus 3 days)

This conversation took place in the middle of the night. I should add that his dad was out of town on a business trip:

Jacob: "Mom?" (shouting from his bedroom across the hall)
Me: "Yes? Is everything ok?" (responding from my bed)
Jacob: "We should floss my teeth tomorrow."
Me: "OK."
Jacob: "Mom?"
Me: "Uh-huh?"
Jacob: "We should also start mowing the lawn."

He is SO his dad's son.

PS: Should I be proud that his sense of responsibility is so strong that he wakes up in the middle of the night thinking about the things that need to be done, or should I be concerned that he seems to think I need to be told what to do??