This morning like all mornings I was cycling in a new neighbourhood that is being built, with traffic closed, but you know, matter of factly, not to cyclists. In many months I've never seen another cyclist in this area that early. I was buzzing along when I suddenly see another cyclist sluggishly pushing a walmart bike across my lane. Whaaaaaw! I aim for the brakes... Clash! And I fall down at low speed, but not him. I quickly stand up, we ask each other if we are okay, and everything is fine as far as personal integrity is concerned. I assumed it was my fault, because I was riding faster than him, but we were both in a closed-to-traffic area. We check bikes, mine is undamaged, but his rear wheel can hardly spin. It is not really out of true, and the brakes seem ok. I offer him to pay for the repair, but he refuses. I then notice an East Europe accent. I insist: "Let's exchange numbers, and call to tell me how much it cost." But then he weaves off, wheel rubbing. My last words: "Are you sure?" Nod. I get to work and guilt invades me: this poor guy, immigrant, maybe an illegal worker in the new buildings, afraid of being caught if insurances are involved, and me with this faint are-you-sure, not insisting enough... What would you have done?