Mine did that, sit and wait, when I first started playing laser pen with them. After a couple of weeks of NOT playing with it/them, they stopped waiting. It has been a couple of years now, since I last played laser with them and I bet, if I lifted the pen from where it is stored, they would come running. They recognize the sound the key chain makes, and the sound of the sea glass in the container where the pen is stored. Much like the sound of the drawer where the can opener is kept. Pavlov's dog.

You need to replace her time with a new addiction. Good luck!