I've seen just about everything since I started working there. Tonite some guy grabbed a cart, put a tv in it and tried to walk out the front door claiming he was a cashier taking it to the customer's vehicle.
The door greeter didn't fall for it so the guy turned the cart around marched straight thru the store, into the warehouse area and out the fire doors. Alarms went off and everything. The door greeter notified asset protection and they snapped pics of the guy and gave them to the cops a bit later.