Personally, the craziest thing I’ve seen done was long ago while I was in college. At the University of Tampa around 1984/1985 I watched a guy named Spicoli (yes, like in Fast Times at Ridgemont High) do a spectacular stunt. He funneled a beer held by someone riding on his shouders while idling and juggling. Very Impressive!
As for videos, here are the 5 Bertis. They offer lots of Giraffe madness including a flip of a woman onto the shoulders of a giraffe rider (towards the end of the video):
I’m going with Adrien’s frontflip.
+1
You can see she has a support line attached to her in case she fell. Kinda like the tightrope walker using a net, but still a great feat of skill!
From NAUCC in South Dakota:
You will see the same in most European circus, and in Cirque du Soleil. The point is to do the skills, not to risk death.
Oddly, sometimes local laws require extra safety stuff in circuses. In New York, Ringling has had to use a net under the tightwire (probably depending on height or audience proximity). Also I remember a case where a big cat act (in a tent circus, not Ringling) was unable to perform because they did not have a cage for it, but the law required it for that area!
I remember commenting on that same video in a fairly recent thread, probably with a similar subject. I still like what Reino or Mell Hall did, but I never saw film or video.
Thing ive done: Bomb dropped/caveman 1.5m.
Seen: Adrians frontflip. thats insane.
The craziest thing I’ve seen done live was a young chinese boy riding a giraffe unicycle, on a slack rope, while upside down, pedaling with his hands. From memory he was 11 years old. Unfortunately I’ve never been able to track down video footage of this trick.
The last 5 seconds. I’ll never do it again!!!
^
lol those people on the expressway were probably flippin out. surprised no rubberneckers wrecked, ahah
Unicyclists are advised to turn off the sound before watching this clip. Is this the source of the connection of “Entry of the Gladiators” with unicycling?
Craziest thing I’ve ever done on a unicycle? Did a fantastic ride, really enjoyed, but didn’t film it, so it didn’t really happen. 
Never done any fancy tricks; I’ve always been into exploring and riding it as a vehicle. Crazy things and places:
20 miles on a 20" uni.
Riding on the roof of a church tower. (Not a steeple!)
Riding on the top of the keep of Warwick Castle.
Riding around the balcony of the Ashridge Monument.
Great vintage footage!
I don’t trust that guy sitting at the table though, he seems like a nasty piece of work.
I love Brian’s videos, it was crazy when I realized that throughout that NYC clip he was riding behind you on a 29er schlumpf with all his camera gear.
EliB - Let’s see some video of Adrien’s front flip!
TheJoker - What do you mean by "Bomb dropped/caveman 1.5m?
Well this is fun. How about some more vintage wildness:
Wow, talk about playing in traffic!
Now I want to try it. I’ve done the NYC taxi-dodging on a 24", but how much more fun it must be on a 36 where you can pass them!
One of (too) many. I never saw that movie before, but they sure went and hired some top acts to be “set dressing”.
Wow, Denis Frisoli! Never saw video of him, and barely any pictures! I don’t think there’s any dispute that he probably has the height record for an unsupported and un-saftey-protected unicycle ride. I wonder of there’s video of when he crashed it? Yes, he fell 35’ when trying to ride it on astro turf in a football stadium. This is why Guinness doesn’t list tall unicycles ridden without safety gear… 