What is it like to buy fake goods at a counter?

I had a personal experience that made me particularly angry. I bought fake Anna Sui perfume at Raffles Shanghai. Because I was doing an internship in Shanghai at that time and I was very pressed for time, so I left the next day. When I used it when I got home, I felt something was very special and the smell was wrong. It had a strong fragrance. I had been using perfume for a long time. You can easily tell which one is true and which one is false. I was very angry at the time and had no choice. I had already returned from Shanghai and I was still very unwilling. Every time I thought about this matter, I still felt very angry.