back when I didnt have any money in my bank account I did the stupidest thing ever by riding a freewheel bike, no brakes. it was fun and I survived so I figure my brakeless fixie is no where near as bad. I did get in one accident shortly after taking the brake off, but even if I had brakes it wouldnt of mattered as a guy on a bike pulled out from infront of a semi sitting at a red light about 5 feet in front of me and I was going a good 15-20 mph. It taught me to be even more cautious and I haven't wrecked yet.