I have a friend Sereg, and he loves to get into funny situations on a flat ground. He was resting outside the city with his girlfriend, and she offered him to ride the big ones. They broke their bicycles and went. I have to say that Serega at that point has not been driving for a long time and therefore, probably (or he is just a fool), did not immediately realize what it was about. In the end, they drove five kilometers, and all this time Sereg literally pulled. He moved very slowly. His girlfriend had already gone forward, then returned and all pursued him. And he relentlessly turned the pedals, but could not catch up with her. Movement was very difficult for him. Eventually, licking afterwards, red like cancer and with rejecting legs, he finally surrendered and confessed to his girlfriend that he could not go further because he was tired and exhaled. Then Seregi's girl decided to change with him a iron horse, and sitting behind his bicycle, found that she could not just move from her place. After carefully examining the brakes, she realized that they were not in order (I do not remember whether the disk was pushed or the pads were pressed). As a result, my friend drove on the heat of about five kilometers across the crossed terrain on a large with tight brakes and almost caught a heart attack, trying to have time for the girl.