Goodnight...

Mom:  I'm going to say goodnight.
Me:  Okay.  Goodnight.
Mom:  I'M suppose to say it!
Me:  Okay.  Sorry.  I didn't say it.
Mom:  Thank you.  Goodnight.
Me:  Goodnight
Mom:  I'M saying it, not you!
Me:  Sorry.
Mom:  Goodnight.
Me:
Mom:  You can't even be polite and respond when I speak to you!

I seriously don't make this stuff up.