CDN, I think on a freezing cold day while trying to scrape ice from car. I noticed it hanging one day sometime after that.
Present: 2011 E90 M3 Jerez/beige
2013 Honda Pilot Black/gray
Past: 2011 E70 35i titanium/black
2013 Subaru Impreza graphite/black
2011 E90 335i xdrive (bad mistake)
2005 Subaru Legacy GT
2002 Mini Cooper (90th produced, still have t-shirt)