It's dishonest to take credit for work you didn't do.
Harry is working on a project for his boss at work.
Harry wants to get his work done on time.
Harry works a lot of overtime hours to complete the project.
Harry copies some work that a coworker completed and uses it in his project to save time.
Harry is praised by his boss for doing a good job.
Harry gets fired when his boss discovers his plagiarism of his coworker.