In the 70’s a friend used to stand on the seat of his Kawasaki 500 doing a ‘wheelie’ up Broadway in Boulder, CO.
Wasn’t fun enough so he got a 750.
We were in the car not too long ago, on one of Los Angele’s very very busy freeway - a guy on a motorcycle was flying down the road “popping a wheelie,” probably around 70 mph - my husband is a life-long, very experience motorcycle rider and was shocked at what this guy was doing.
As he passed us, he bobbled the bike - we were sure he was going to go down right in front of us. He managed to save the bobble and put himself back on two wheels - hope it got his attention and he won’t do anything again so stupid - but husband said he saw idiots doing all kinds of profoundly stupid things on motorcycles. He well knew how dangerous they could be.