Has anyone else come across this... cars mysteriously in the ditch or stuck in snow mounds when the weather and/or road conditions don't appear to be a factor?

I get a laugh about this every day on my way to work. Admittedly the roads in my region are being totally destroyed by this years winter, but none are so bad that they force you into the ditch.

I just don't understand how its happening though. Black ice or light snow makes sense, but not 100% traction on clean pavement.

**clearing throat**

what's up with that?