One More Time...

I was home from work yesterday and Hadley spent most of the day in the bedroom, playing and napping in her favorite spot on the carpet.  In the afternoon she woke up from a nap, walked to the area near the door, squatted and peed on the rug.  I don't get it.  She gets it right 95% of the time so what goes wrong in her mind the 5% she screws up?

Patience...deep breath...patience...