Retaliation is a strong charge. The most I think I've ever done is to thank the person for their opinion but then point out that it has no effect on the decision.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'