First time seeing customers-an awkward day

Today is not the first time I have met a customer, but the customer has not seen it, and there are still a lot of embarrassing things.
After work yesterday, my boss suddenly remembered that he would take me to the customer today to show the customer the software system we developed. So I hurried to prepare and leave. I saw my colleagues who were close to me and couldn't borrow my notebook. The environment can only be set up earlier tomorrow. I notified some colleagues in the evening that they had arrived very early the next day. Fortunately, we knew we were going to demonstrate the system and basically installed the environment. Today we only need to test it again. But the problem arises, and the Application ProgramAnd databases. It was later found that the problem was caused by the TNS of Oracle, but many methods could not be solved. So I decided to use the second set of solutions, instead of presenting the program to the customer, and directly showed the customer the operation process of our recording. So I decided to upload the recorded file to my notebook, but I was just about to transfer it to my notebook. Suddenly there was no electricity, and I was dizzy. I haven't encountered such a thing since I came to this company, it happened at this time. Since the data cannot be transmitted, there is a power outage, and there is still some power in the notebook, it is ready to delete Oracle and reinstall it. After an hour, I finally got the debugging ready. I can go to the client.
When I was about to leave, someone suddenly asked who had not eaten breakfast, so I knew that my boss knew that I had come early. I was afraid that I had not eaten breakfast and bought me steamed buns and soy milk. I don't want to eat it, so I took it all. On the way to seeing a customer, I was willing to buy the steamed stuffed bun from my boss. It was quite cool and I really had no appetite, I had eaten a lot in the morning, so I kept holding it in my hand. I went downstairs to the customer's company and was preparing to go up. I asked what to do with the steamed stuffed bun. My boss told me that the company was thrown into the garbage bin, halfway through, my boss thought it was inappropriate. I went to the customer's company with a generation of steamed buns and checked whether there were any garbage bins around. So I put them in the car first and said angrily: this kind of thing should not be done again next time. After hearing this, I will ensure that there will be no more next time.
When we arrived at the customer, we knew it was late. When the leaders had something to do, we went back as soon as we got out. Although I didn't see customers this day, I learned a lot. For example, many accidents will happen, so we must have the ability to respond, and pay special attention to etiquette. Besides this, we talked a lot with our superiors on the way back, I learned a lot. Thank you here.