Same here! I joined a group of folks that do a 1.5 mile loop in a business park on lighted streets after work. We might have had 30 in the pack at one point. The pace tonight wasn't as frantic as it has been and I was able to ride wheels most of the night. I did wind up out front for a couple laps at the start and knew I couldn't pull for too long.
It gets pretty hairy whizzing around 25+ mph and a few inches behind a wheel and going through the light and then dark spots in the streets. I just don't think I'll ever get completely comfortable with that part of it.
It was a good way to run your heart rate up for 1 to 1 1/2 hour during the week though!