Muting the TV

Mom calls me one day at work. I can hardly hear her because the TV is on what must be the manufacturer's  highest volume setting.

Me: Ma, lower the TV. I can't hear you.
Mom: Oh, right... [presumably searching for the remote] OH NO... I just tried to mute the TV with the cordless phone. [beat] DON'T TELL YOUR FRIENDS.

So, I'm telling my friends...