If you have credible evidence and are extremely coersive, I believe so. Although It doesn't happen often. The other person has to be open minded and really listen to them, not just end up in a rage spouting off their opinions, or what usually happens, they insult the other person when they have no rebuttal. My favorite line when insulted when I am debating another person is "Insults and personal attacks are the first signs of a failing argument." It either shuts them up or they get madder, either way, you win.