Not seen, but happened to me...

1) A few years ago I discovered a private road that goes through a golf course that I can take to cut down on the car traffic for a while and avoid an uphill left turn in the morning. They have a gate in the middle to prevent through car traffic, but a golf cart path next to the gate that I can hop on. So I was on this road one night in December soon after I discovered it, and it was dark. I did have a light, but being a private road, there were no streetlights so I could barely see anything outside my light. Suddenly I saw this big tan mass coming up and just had time to think "What's that? I should probably try to avoid it..." when I ran up one side of this big (like 8' high) pile of sand they had left in the middle of the road (for replenishing the sand traps, I'm sure) and landed softly on the other side. Not hurt at all, and it was kind of fun...

2) Two summers ago, I was just starting to use an open-topped grocery pannier for carrying things, and I was carrying my lunch and change of socks and underwear. (Keeping outer office clothes at work at the time.) I was speeding down a hill to make a green light and hit a little bump just before the intersection, spilling everything in my pannier out onto the street, around the area of the crosswalk. After going through the intersection I did a U-turn to go back and get my stuff, which fortunately hadn't been run over yet, and as I approach I see this very pretty young woman crossing the street towards my stuff. As I picked up my lunch, I saw her pick up my socks, and sure enough, my spare briefs, and handed them to me with a smile. I probably said something brilliant like "thanks", but enjoyed thinking about telling my wife that a pretty 20-something female had handed me my underwear that morning!

3) One morning after a snowstorm I strayed too far into the untreated shoulder after an intersection and proceeded to ride right into a snowbank, eliciting laughter from the motorist passing me at the time, and it was so fun I just had to laugh with him!

Come to think of it, I have seen someone playing the bagpipes on two separate occasions this summer, although once was at a tournament at the aforementioned golf course, so that kind of makes sense, golf being Scottish and all. The second time was someone practicing in a parking lot behind some oil terminals near a train yard. (Probably banished there by his family!) Bagpipes are always kind of humorous instruments anyway.