Oh no you not

Me: "on your mark... get set... GO!"
S: "No, mommy, you NOT say go, I say go. Ready... GO" and takes off.

H, singing, "a,b,c,d,e,f,g..."
S "NO H! That MY song. You NOT sing my song"

H, sitting in car, looking out the window.
S, "NO H, That MY window. You NOT look out my window."