Let's face it, if you're a Cat (like I am), Friday is just another day. Another day of sleeping as late as I want, demanding to be fed, napping in my favorite spots, whapping various items from the tabletops and getting my special stink on as many of Mom's sewing projects as possible. When she gets back from her day hunting gig, I demand food, attention, and then pretty much do anything I want.
Mom looks forward to Friday because after Friday come Saturday and Sunday, and she doesn't (usually) have to go to her day hunting gig either one of those days. Does she spend those two days sleeping late, or napping in her favorite spots?
She's a silly bean. She'll spend the time doing the washing machine shuffle, going food hunting, dragging the rug sucking monster all over hell and damnation, and she'll be in the sewing room cutting up big pieces of fabric into little pieces of fabric, and then sewing them back up into big pieces of fabric again.
And she thinks I'm crazy for sleeping under the bed.