I can't even imagine the odds of one specific person (you) being hit by someone on a brakeless bike with a suicide hub that has failed on a campus the size of UC. I bet it would be somewhere in the range of billions to 1. And since I have been on campus I have seen more people hit by Wal-Mart Huffies than any other type of bike. So instead of writing notes to two people about their breakless deathtrap you should write notes and post them on all of the clunker bikes sitting around the campus bike racks. You know, give a little safety briefing to the other thousand crappy bike riding people, the people who you see riding and talking on their cell phone while navigating through a crowd of people.