I haven't have the bad experience that I made in the restaurant before due to I haven't been working in the restaurant but my family have a grocery store. And once time ,I calculate and give the wrong change to the customer. At first, they didn't count the money so they went out of the store. After that they came back and started to compliant about it. And that time I couldn't control and hide my emotion and facial expression. I started to express an unsatisfied face and body language, instead of said apologize to what I have done. And this story end up by I give the correct money but not in polite way.I'm lucky that the customers didn't do anything that effect bad image to the store. but after that thing happen I start to change my mind and put myself in other shoes.I feel guilty every time when I thinking about this story because it my biggest mistake and lesson to improve myself.