Q? What does the full time employee do when the work hours come to end?
A: He goes home with his wife.
Q? What does the CEO do then after the work day?
A: He calls his wife by phone, tells her that he'll be delayed because of ending work, then goes to spend the night with his paramour.
Q? What does the EE do when everybody in facility have gone?
A: He calls his paramour for telling her that he'll spend the night with his wife. After that he phones wife and tells her that night is gaming night with friends. So then he can stay in the lab for testing the new version of his project.