on one occasion

Lonnie Donegan, the titular "King of Skiffle", had two top ten hits, while Cliff Richard, then the biggest act in Britain, had only made it into the US top 40 on one occasion.

Mia also started to make suicide attempts - on one occasion, her mother had to physically restrain her to keep her safe.

On one occasion he was shot in the hand, on another he suffered eye injuries after being doused in pepper spray.

She said on one occasion, when Betty had needed to attend her doctor's surgery, she was so upset she had to be given medication.

According to a lawyer representing two women who testified about Gaetz, House investigators were told that witnesses could place the Florida Republican at as many as 10 “sex parties” during his first term in Congress, where illegal drugs were being used and at least on one occasion Gaetz was seen having sex with a 17-year-old girl, Politico reported Monday.