Not really a vent but I was following a small cruiser style bike along Victoria rd in heavy traffic when a backpack strapped to his rack slipped off. It was only being held by 1 ocky strap. Did a little swerve to avoid the bag no dramas there. Then his jumper which was underneath the bag at the time was hanging on by a thread and flapping about madly. I thought oh shit it's gunna get caught in his chain. Anyway got up beside him 150m down the road and waved him to stop. The dude had no idea of what happened. Could of been much worse. The bag landed directly in the middle of the middle lane so hopefully it avoided being run over by car wheels. I'm sure he learnt his lesson.