My worst shopping experience was in summer sales four or five years ago. I had to buy some clothes for me, so I went to a store where I usually go. All the clothes in the store were on sale, so I tried on two trousers and some t-shirts and I decided to buy the trousers and one of the t-shirts. I went to the checkout to pay the amount. I thought it was too expensive for sales. I checked it and I noticed that they weren't sales prices. I told it to the shop assistant and she explained me that the clothes I bought weren't on sale! It get me angry. Immediately I retourned all the clothes and I left the shop. At home, I bought the same clothes on line, all of them were on sale!
And that's my first shopping experience on line.