Just getting too big

Before Liv got sick today, we were eating breakfast at the table when Luke came up to me and asked me for something.
Whatever my response was, he didn't care for it too much and began to complain.
Of course, as soon as this happens I start my record of:
"Luke, when you ask mommy a question and I give you an answer what are you to say?"

Luke: "Yes Mommy."

Me: "ok, are you to complain?"

Luke:"No. - Yes Mommy."

Liv looks up, gets a thought in her head and begins, "Mommy! Luke has an a-ttude!" (attitude)

Apparantly, she was still feeling well at the moment and not afraid to point out her brothers wrong doing.

This is the second time this week she has said this and I am not sure where she got it from. I don't recall using this word with her so I am guessing it came from her father. *smirk*