Jeez, you guys are a bunch of sissy amateurs when it comes to flaming each other. But seriously, this discussion goes to why I gave up organising large rides some time ago. Mark, I agree wholeheartedly - if there was an opportunity for someone to warn the others about a specific hazard, go for it. It’s not like there were 200 people on the ride and you’d be there all day. As far as the OP is concerned, if you have the skills to avoid the hazard, good for you – but I wouldn’t brag about it, because in my experience karma can be a bitch. However, the world that you allude too, where safety Nazi’s dog our every step is in some part brought to us by this very attitude – “..I’m all right Jack and others can learn at the school of hard knocks”. On organized (i.e. commercial ) rides, this attitude is almost understandable as you’ve paid your money and you figure it’s up to the organizers to worry about hazards. On a ride like this, you have a responsibility to Clint & Rosie at the very least to look out for the other riders – they’ve gone to the time and trouble of organizing this thing and they’re going to end up with the headaches if things go wrong. It's not a matter of relying on others to keep you safe, it's a matter of taking responsibility for others to keep them safe.