Late last week I received one of those telephone solicitations at home. You may be getting the same one. It was a man calling on behalf of the Houston Police Patrolman's Union. He said he was seeking contributions for such things as legal programs and insurance assistance. He said if I gave, they would send me a decal that I could put on my car to show my support for police officers. I agreed to give $50, the second-lowest amount he listed. I didn't want to seem cheap. When he asked for my address to send an invoice, I gave...