Attention commuters on I-270 in the Washington DC Metro region: remove ALL the snow from your vehicle BEFORE you get in it and start driving down the road. Turning on the rear defrost and immediately starting out on your commute is not an acceptable substitute. Neither is scraping out a one foot wide square of windshield while leaving the rest of the vehicle with a two inch coating of ice and snow.
(All examples drawn from real life. Sadly, people – real, grown-up people, driving expensive vehicles – apparently need to have this spelled out to this level of detail. Fucktards. Watch this space for the next item in this series, provisionally entitled “It takes longer to stop when there’s a quarter-inch of slush on the roads, you jackasses, so slow down and increase your following distance”.)