Strange instant messages occasionally pop up on your computer screen during your team's virtual meetings, followed quickly by embarrassed apologies from one of your colleagues in another city. You eventually figure out that this person is working from home, even though he says he's in the office; moreover, the messages suggest that he's running a sideline business from his home. You're concerned about the frequent disruptions, not to mention your colleague's potential ethical violations. What should you do? Explain your choice.