If it was as immediate as you say, I know with or without breakes I would have hit the fence, since I usually ride with my hands on top of the bars, I dont hover the break 24/7. I would have slowed down for the corner with the break, but i dont think i've ever cornered while breaking, I freewheel, then accelerate out. If I did break out of fear, and my relfex's were catlike, I would have probably slammed it down and flown over the handlebars.

If you're riding fixed you should change your riding style accordingly.

If you're riding fixed + breakless you should change your riding styles accordingly.

I ride without a break right now because I havent gotten round to getting one, and I ride fairly slowly (incase I unclip or something horrible happens). When I get a break, I will ride faster, but I will still ride with extreme caution since I'm on a fixed and dont want to fly into a fence like some dumbass.

This is another dumb thread about the age old fixed gear question.

Personally, I think its dumb to ride without a break for mechanical reasons (nothing is 100% unbreakable, accidents happen), but I dont give half a damn about somebody that does. I wouldnt lecture them about the dangers. If they are versed enough to have a fixed gear, i'm sure they know enough to understand the dangers.