Manager/Owner at Menlyn store is a rude and unprofessional jerk

We had just entered the store and walked to the back yesterday, when an older, out of shape man with glasses and a blue shirt (Perhaps a manager? He didn't even bother to identify himself. He drives a Range Rover) approached us and said: "In ten minutes the store will be dark. Do you understand what I'm saying to you?! We're closing. Take what you want and get out!" So we turned around and left - shaken, shocked, and disgusted. We will NEVER attempt to support Binuns again - clearly they don't want our money. Horrifying that paying customers are treated this way.