Last night Mischa Barton caused a scene at Whisky Mist nightclub in Mayfair when she tried to drag a friend into a toilet cubicle with her.

The attendant wasn’t having any of it and shouted, “What are you doing? You are not allowed to go in together, you have to come out now.”

The girls obliged and Mischa headed into the cubicle on her own but she proceeded to take so long doing whatever it was she was doing (the mind boggles) that a fellow reveller at the club claimed:

“At one point the toilet attendant had to knock on her door twice to ask if she was alright. Then her mate was knocking to check she was feeling okay.”

“When she came out of the cubicle, she was complaining about people knocking on the door. She looked slightly worse for wear as she attempted to apply her make-up.”

She then headed to Bungalow 8 at around 2am to continue her wild night on the town.