Stalker.

on a side note:

our precious purple pool is gone, officially. i drove around the 'hood, walked through alleys, looked in backyards, its a goner. Goodbye pool.

Now back to Jane's stalker ...

this is their routine anytime Gyp comes up the stairs.

Gyp stalks .... Jane snarls and pounces, and they run through the house like hooligans.

more stalking, Jane is getting fierce ...

here is what it looks like once Jane takes off running, she is such a good little sheep, though sheep don't snarl, growl and show their teeth do they??