How much daily exercise and training does she get? Are you using Nothing in Life is Free? What kind of training do you use throughout the day?
Also, is she muzzle trained?
The incident that happened today does sound scary. Are there steps to take to prevent that from happening again? Can you set up an additional barrier so that she can't slip out the door?
Ruth & the 4 Legged Rescue Gang
Rafi the malaroo
Gio & Varda, the krazy kittens
....In my heart: