"I didn't use it!"

Birdie is a very loving nan! But there is something unusual about her. Even though it is more common for males, she loves reading on the toilet. She's done it since she was little. Says it was the only time she had peace and quiet- to which is the main reason why people read on the toilet.
Well so she had read many books in her days and she leads books out when she has finished them.
Willow is Birdie's granddaughter and she loves to read- just not on the toilet like her nan.
Birdie rereads books all the time and sometimes, she just forgets to take in with her to the toilet- a bookmark. So, just like everyone else who reads on the toilet- if she doesn't have a bookmark (because she doesn't fold the corner of the page) she uses a piece of toilet paper.

"Nan, do you have anymore books for me?" says a very earnest Willow.
"Of course I do! You know where to find them." nan says with a wink.
Off to the toilet goes Willow and comes out with an arm full. Willow's favorite spot to read is in her nan's garden, so that is where she was headed while Birdie decided to make a cake.
Right before the timer were to go off announcing that the cake was done, Willow walks in with a disgusted look on her face.
"Nan! What is this?!"
Nan laughs while she said, "It's toilet paper- what else would it be?!"
"I can see that, but what is it doing in here?"
"Willow Darling, I didn't use it!"
"It's you're book marker???"
"A substitute."
"Thats so gross nan!"

Moral of the story- when you lend out books, make sure there is nothing gross inside! haha =]