Police were forced to pull over a man on a unicycle for wobbling too much – at nearly 30mph.
Officers intervened and issue some “words of advice” after spotting the rider on the A38 on Sunday.
Pictures taken on a bodycam appear to show the unicyclist – clad in a bright top and helmet – crossing a roundabout.
Cops said he appeared “unstable” while “riding at speed” on the A38 between Quedgeley and Moreton Valence.
In a tweet, Gloucesterhire Constabulary said: “Words of advice and details taken from a male riding a powered unicycle. 28mph+.
“Quedgeley to Moreton Valence via the A38. Danger to himself and other road users. Unstable upright riding at speed. Good use of issue bodycam.”
Following a comment attached to the original post, the force added: “The unicycle was electric charge.
“Not safe for the conditions of the road and other road users should he hit a pot hole and fall off. If reported in future we have his details.”