I don't know what state that you work/live in but here in Illinois we have a law, and all you have to say is ..... "I'm sorry ma'am, your services are no longer required". Bye-Bye now!
Of course, she will file for unemployment compensation...your company can fight it.
Theft and insubordination are (2) very valid reasons for denying unemployment compensation to this little "B-och" (as the cool kids say it).
I agree (again) with Ann, "Chaos does indeed breed chaos".
Good Luck,
Colleen