I once saw a Safeway pharmacy tech or cashier threaten to jump the counter and attack a customer who had just threatened her. Security surrounded the customer, a manager held the employee back, and everyone waited for the police to arrive.
Same Safeway, a few months later: Some guy with a utility knife ran through the store, chasing someone who either was actually shopping or just ran into the store to get away from him. Blood and police all over the place.
That was the last
time I shopped there.