Technically she isn't wrong, the week is a man made construction there are Cycles which we call days but no weeks or even really no years they are just phases of the earths orbit we gave them names, the roman empire for example had a ten day week but it was the babylonians that gave us the seven day week.
(gotta love QI on bbc2)
You know thats quite funny for anyone but you but since it was you then that is actually the most screwed up thing here.
As for my mom (since my dad is dead) she sometimes comes out with funny things but always at my expense never at anyone elses so everyone gets to laugh but me.
Father - WTF? DIDN'T YOU LISTEN YOUR MOM! CLEAN YOUR ROOM
Me - I'm going... I'm going!
Father - What? Are you talking to me like that? Today you own't go to the computer!
Me - Tch fine whatever *goes to my room and shut the door*
A few minutes later
Father - Have you cleaned your room?
Me - Yes I did...
Father - Why the hell are you looking at me like that? Tomarrow no computer!
Me - What?
Father - You are complaining? Monday with no computer!
Mother - Come on leave her alone we have to go shopping!
One hour later
Father *talking to me* - Sweetit, sweetie do you want to go to the computer?
Mom - WHAT' you just told her she couldn't go to the computer!
Father - I know but I can't be mad at her!