Boredom

She just had to read in the bathroom.

However desperate she was for the toilet, she first dashed for a book or magazine. While in the shower she read, holding her book in one hand, and then in the other... till she eventually had to put it down to dry herself.

In the event she forgot to grab a book on her way in, she read the backs of shampoo bottles and toothpaste tubes and toilet cleaner. Words she has now memorized, purely because of the number of times she's read them.

It's a habit... it keeps her from getting bored. That's what she says.