Mr Banks was a philandering husband who cheated on his wife after twenty years of seemingly happy marriage. Suspicious of the affair, she called into Barlow Legal Services in August 2017 wanting advice on how to get a divorce from her husband. She walked into a discussion between partners Adam Barlow and Todd Grimshaw with PA candidate Rosie Webster who had applied for the position under a false name knowing that otherwise the two men wouldn't see her. They made it clear that they viewed her CV as a total fiction and they wouldn't even consider her when Mrs Banks walked through the door, causing Rosie to go straight into professional mode, showing the client into the office and offering her a cup of tea in an effort to prove her worth to the two men.
Rosie sat in on the meeting where Mrs Banks admitted that she had no actual proof of infidelity and Rosie offered the firm's assistance in providing that, at which point the two men had to step in as she was going too far and accepting a remit which they didn't offer. The woman thanked Rosie for listening and left, and Adam had to also inform Rosie that the job wasn't hers.
Undeterred, Rosie went and staked out the Banks' house on Worrall Drive where she saw Mrs Banks leave in her car and a woman supposedly waiting at the bus stop nearby rush into her husband’s arms as soon as she had gone. Rosie returned soon afterwards with her window cleaning stepfather Tim Metcalfe, complete with ladder, bucket and chamois leather, intent on getting incriminating photographs under the guise of cleaning the windows. Mr Banks spotted them and ran out of the house, seemingly dressed in his wife's short dressing gown and demanding to know what they were doing taking pictures. Tim quickly came up with a story that they were using a "smudge's app" on the phone which gave out an ultraviolet light showing the parts of the window that they had not cleaned properly. Mr Banks remained highly suspicious, and Rosie brought the conversation to a swift end by pointing out that he was showing some dangling underneath his short dressing gown!
Rosie sent the pictures to Mrs Banks who confronted her husband with them. He confessed to the affair and the two agreed to try again. Even though the firm had not formally taken her on, she sent them a fee in gratitude which Adam and Todd split with Rosie, also giving her the job as a reward for her "barking mad" initiative.