Animal run-ins: Speeding deer, a large herd of wild turkeys (who all decided to fly in place in the middle of the road about chest-high, miscellaneous dogs, snake.
Going over a bridge, I turned just in time to see four teen-aged skinny dippers (two boys, two girls) getting out of the river about 40 feet away.
Observed multiple sexual encounters in parked vehicles and park benches.
And, didn't see, but experienced: Rode my usual Saturday workday commute. Started passing an unusually large number of cyclists. Everyone going the same direction. Over time, noticed that people were standing on the sidewalks and sides of the road for no apparent reason. Strange. The numbers increased over the miles. Very strange. Then, I rounded a high-speed curve and looked up just in time to see a banner hung over the road. Three people stood out in the road and multiple people stood on the side and took photos of me as I passed a guy just before the banner. Just about then -- too late -- it finally dawned on me that I had crashed the bicycle leg of a tag-team triathlon. Some of the news photographers thought I had won. At the very least, I seriously messed up the winner's finishing photo.