A student, who has accused a doctor of groping her in a busy bar allegedly told him 'you've picked on the wrong girl' and punched him in the face.
Eoghan Gallagher, 34, is said to have 'grabbed' and 'squeezed' the stranger between her legs as she walked past him at Floritas in Newcastle.
Newcastle Crown Court heard, in response to the sexual assault, the alleged victim, who was studying at Durham University, told him 'You don't do that to a woman. You've picked on the wrong girl' and punched him in the face.
The medic, from Knocknacarra, Galway, Ireland, denies sexual assault and is being tried by a jury.
Prosecutor Elizabeth Muir told the court the alleged victim, who was wearing stretchy, elasticated jeans, had been in the busy bar looking for friends in the early hours of the morning in spring last year.
The undergraduate was walking through the bar towards an adjoining door with a club next door named House of Smith when she encountered Gallagher.
Miss Muir told jurors: 'She came across the defendant, who was standing in front of her as she was walking by.
Miss Muir said the student then saw and felt the doctor's hand between her legs.
She added: 'She pushed him away and said words to the effect of "what are you doing, you don't do that to a woman" and was screaming at him.
The court heard Gallagher was removed from the club then arrested and cautioned by police, who were already outside on patrol of the city.
He was initially co-operative with officers and said he had done nothing wrong but gave no comment during interview.
Ros Scott-Bell, defending Gallagher, said the doctor's recollection of the incident was that he and the woman accidentally came together as he turned to speak to his friend and he apologised because he believed he had spilled her drink.
The woman admitted she had punched the man and added: 'There is no way I would punch someone for spilling a drink on me.
'I am not proud I punched him, I don't condone violence but I was so shaken, I just panicked, I hit him.