The comedian has been accused by former partner Anna Larke of abusing her during their nine-month relationship.
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Larke told jurors at St Albans Crown Court that the incident occurred after they were out drinking with his former co-star Alan Carr.
"Justin shoved me in the back and pushed me into the traffic," she claimed.
"He was drunk. I was lucky a man stepped in to save me."
When asked if Alan Carr would be able to confirm her story, she said: "Alan was drunk as well."
The jury have also heard of Larke's claims that Collins used a notebook to list all of her sexual experiences with former partners, and that he "controlled" her online activity.
Collins has denied harassing his ex-lover and causing her fear of violence between January 1 and August 1 of 2011.
Larke has in turn denied being "emotional, obsessive, paranoid and volatile", saying: "He used to drive me insane."
The case continues.
