Police were called to a petrol station in East Barnet on Saturday, following allegations of a row.
Officers were called at 8.45pm and told that an argument had broken out between two adults over someone cutting into the petrol queue at the station in East Barnet Road.
It is claimed that someone threw a bucket of water over another motorist and the empty bucket was then tossed around.
When police arrived, the pair involved decided not to make any formal allegations.
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