I was 5 or 10 miles into a century and a fast paceline group of 5 or 6 guys was passing me, so I thought I'd join. Wow. We were doing 27 mph when it was my turn to pull. Just as I got to the front, there were a couple of rollers dead ahead. Of course, I popped and started slowing down, so I pulled off and fell off the back, feeling very inadequate.