Nothing gets my attention faster than kids in the road on bikes. We were out on the tandem just the other day enjoying a nice downhill when we came up on a couple of kids (maybe I should mention we were on a, lets say, 6 hour training ride - our second that day ). I cut the speed back and told my wife "nothing is more unpredictable than kids on bikes". Sure enough, even though they were coming our way on the opposite side of the road and knew we were there, at the last second one of them cut across in front of us and into a driveway and I could tell the second one was considering doing the same. My wife was surprised at my correct appraisal of the situation. Not sure why she was surprised.