When you are arguing something for your work with your boss,you suddenly notice you are wrong,what do you do?I met this situation yesterday.For better regulating the company‘s business,my boss made some new rules as a message  posted them into our qq group of company. I remembered that one of those rules informed that if we could exceed the quotas in a month,we would take more than 35% of the wages.So i asked my boss to keep his words.But my boss said he had never promised this rules.He affiemed this rules is about 25%,not 35%.Then,for proving this rule’s number ,he opened the qq.I did also.when i saw the message,i was emberrassing because of my stupid memorize.It was clearly written 25%.I just wanted to escape his office that time.I apoligized to him,griping my clothes to pease my motion, and left his office.Sometimes,proving your message is important,learning to apoligize is more important.