Disruptive resturant

I was at the McDonalds's in Rosebank and i witnessed something very appalling while placing my order i saw a lady behind the counter that seemed to be the store manager shouting at a staff member at the top of her voice which ended up causing a distraction to the other staff members slowing down the service, as if that was not enough after taking my order and taking a seat another by the name of Maureen started having an altercation with one of her colleague's close to where i was sitting which made me very uncomfortable and i ended up having to leave the resturant, i must say Rosebank McDonalds is the worst.