Bad customer service

I went to the store today to purchase a watch and noticed they were having a sale on their jewellery section a necklace caught my eye and wanted to buy it, I was looking around while I had the necklace in my hand, but then I noticed that there was a fault with it, so a put it back and looked around,the lady working in the store just rudely shouted, where is the chain, and basically accused me of *****ing the necklace, I was very insulted and I told her I was not happy with the service and she told she was correct I did not want to get into a fight with her so I bought the watch and left the store