Friday night was the 10th anniversary of Critical Mass in Chicago. 3000 of us rode for about 5 hours. It was such great fun, I'm doing it again next month. It'll be Halloween, too, so weird costumes are in order.
There were some flaring tempers (bikers, motorists, and pedestrians included) and a cop bumped into my bike at one point (he was splitting to make an emergency run). Me, I just like to bike ride. The longer, the better. 5 hours hit the spot very nicely. Plus, with all that caloric output - two dinners!!
Highlights of the ride: the happy baby (captured clapping on film), the pissed off pedestrian who stood on the street corner yelling "F*cking attention-needing motherf*kers!", the cheers and honks and thumbs up, little kids in Cabrini Green giving us high-fives, the rich dude in the Jaguar smoking a cigarette in a very "yeah, okay, I'll just chill here for awhile" sort of way, the cop who bumped into my tire while speeding off to a call (I hurt my knee trying to get out of his way), the random bumping into friends, and yes, two dinners. Vietnamese food AND greasy diner grilled cheese and fries. Mmmm.
EDIT: My video got posted in Metroblogging Chicago. Also, here are some Critical Mass events in other cities.