It is a serious problem for the people who has habit to tell a lie, how to cover up the mistake after saying stupid excuses with blaming others. There is a country called Spain. They have a proverb like "Una mentira,decientotira". It means if you tell a lie without sufficient care, you will have to tell lies hundred times to cover up the original lie. We also have something similar in Japan and I think it is very correct. Sometimes careless lie will make others very angry. In many cases, we can find some better ways to solve the problems, and it is not necessary to tell a lie.