yyz is right, a cop will lie to you to see if you get nervous. it's a common practice, my girlfriend is a reporter and she did a story on the border crossings, they told her they do it, and then 2 weeks later we get stopped at the border, searched, and grilled because of the "trouble i had been in" that i wouldn't confess to. to bad the worst trouble i have ever been in is a speeding ticket. they weren't "messing around", they wanted to know "what i was up to" and if it had to deal with my "past troubles"?! ha, piggies!!