Spending a penny cost a teenager a £50 fine and £55 court costs.
Didcot magistrates heard in court that police saw Daniel McGibbon "urinating on the footpath in Broadway, Didcot, in full view of people of both sexes".
Karen Williams, prosecuting, said: "He wasn't doing it against the wall but in the open."
McGibbon, who smelled of alcohol when he was arrested for urinating in a public place, said he had been drinking with his girlfriend in Broadways pub until the early hours on New Year's Eve.
With the sudden need to relieve himself, he said "I went rather stupidly along the side of the Abbey National Bank".
McGibbon, 19, of Norreys Road, Didcot, who admitted the offence was given 28 days to pay the fine and costs.
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