One time in street clothes and loose shorts on my commuter bike, I tried a cowboy mount as I left the parking spot in the company garage. My left foot was on the pedal and I was swinging my right leg over the saddle with a half pedal stroke so I had minimal momentum... and my shorts got caught on the nose of the saddle and this is my fixed gear so the crank kept turning and my foot was still on the pedal and my shorts were caught and I managed to hold it together until I got to a structural column to stop at with a very slow speed and semi-controlled collision. It was glorious and embarrassing at the same time.