Reply #61: The fact that you know them makes them even less likely to disagree with you,

[Occam Bandage]

simply because people do not, as a rule, leap into heated discussions with people that they intend to keep as friends or business associates. If they're clients, they are not going to risk their business interests simply to get into a telephone argument they had no intention of having. They agreed with you to get you off the line. Generally, people are too polite to tell you you're rabid, and aren't rabid enough to get into arguments.

Life isn't DU. People do not leap at the chance to defend Their Candidate. They usually just go along and roll their eyes when it's done.