[2] She attended the independent Claremont Fan Court School in Esher, Surrey, where Michaela Strachan was three years below her.
[3] After gaining a degree in politics from the University of Sussex,[4] she trained as an actress at the Drama Studio in Ealing and was in the musical Evita for a year.
[6] While returning home, stuck in traffic, she observed an empty plastic bottle being thrown from the car ahead of her and threw it back into the vehicle through an open window.
On Twitter, colleague and friend Corrie Corfield said Arnold deserved a damehood for her action.
During 2013, she worked for the BBC in a training capacity and was involved in the Expert Women's Days where she coached potential female interviewees for Today.
Arnold wrote about the Scottish Muirfield golf club in The Guardian after it rejected proposals to admit female members: "Another argument put forward by the 'no' campaign is that not many women would want to join.