It's wrong to make up excuses.
Jake is behind schedule on an important project at work because he's been procrastinating, and has a meeting with his supervisor that morning.
Jake has to report his progress to his supervisor.
Jake owns up to his procrastination but promises to work overtime that week in order to finish on time.
Jake claims his PC crashed and wiped out all the project data he had.
Jake's supervisor appreciates Jake's honesty and allows him to work all the overtime he needs to get the project done.
Jake's supervisor asks to see Jake's PC and realizes Jake was lying and terminates him.