Dollar Tree

This cashier was rude and threatened to not service me when I asked why he let a person cut in front of me. I waited on line for 20 mins and the line was extremely long. Up came this woman and he stopped ringing my products. He voided the transaction and ring up her products. I asked him why he did this and he said that she only had 4 items so why not. I said because the rest of us had waited! He then told me to shut up and that I continued he would walk me out!

So rude! Why am I getting yelled at?