Here’s Hal Ruzal, career bike mechanic for Bicycle Habitat in New York, doling out grades for different bike locking methods. This is a 2003 video, but there have been two sequels made in the interim. Hal mentions that people actually recognize him from the videos, yet somehow seem to have learned little from his advice. Part one is embedded here as a YouTube video, but the higher-quality original and the sequels are available here, here, and here.
