I'm on the phone!

I was trying to take care of some business on the telephone and Morgan was yelling, "WHO'S ON THE PHONE?" and being really loud, so I put the phone on mute and said, "Morgan, Mommy is on the phone and I cannot hear what they are saying, so you need to please be quiet!"  She said, "NO, I DON'T WANT TO BE QUIET!"  I went in the other room and finished the call.  I came back to the living room and Morgan asked for a cup of milk.  I went to the kitchen and poured some milk and she walked in with the toy phone up to her ear.  I said, "Here you go, do you want your milk?"  She said, "Wait, Mommy, I'm on the phone and you have to be QUIET!"  Touché, Morgan, touché...