It this began with a ticket agent (who generally gets a cut) and a &quot;drug-sniffing&quot; dog.<p>Police dogs are magical beasts -- you just point the dog at the thing you want searched and wait for it to &quot;signal&quot; that it&#x27;s found something.<p>I really wish that the Supreme Court had had the chance to review the accuracy of drug dogs in their case this year (Rodriguez v. US).<p>How many times can a dog signal a false positive before you recognize that the drug dog is trying to please its handler?  The police have no incentive to count.