Some call it "traffic calming," others call it law enforcement. The police get high-tech speed-trap gear like lidar and VASCAR, while others — like homeowners and various safety groups — find their own sneaky techniques. What's the cleverest way to get drivers to slow down?

A few holiday seasons ago in Orange County, California, a police officer dressed as one of Santa's elves manned a radar gun at the side of the road. Likely assuming the elf was one of those roadside hawkers promoting mattresses for $99, drivers didn't bother slowing down, and were picked off one-by-one. (Those pothole stickers? They're a hoax.)

(QOTD is your chance to address the day's most pressing automotive questions and to experience the opinions of the insightful insiders, practicing pundits, and gleeful gearheads that make up the Jalopnik commentariat. If you've got a suggestion for a good Question of the Day, send an email to tips at jalopnik dot com.)