There's the rub.
People have called headquarters on her so much she's on speed dial.
They do nothing.
She nabbed a Conure off the floor and kept it in "quarantine" in the back room for a year "until the price went down" so she could buy it.
Somebody ratted her out.
Headquarters just told her to put it back out on the floor, where it was purchased by somebody else shortly after.
She's Teflon.
She'd have to actually murder several customers to get fired.