A disgruntled London Underground worker who once gave himself a £13,100 Oyster card discount is facing jail after directing Subway sandwich orders to the Waterloo control room.
The 28-year-old was caught hacking his colleagues emails, posting abuse online and tricking Subway customers into calling the Waterloo control room to make food orders
Lewis Kelly, 28, also hacked into staff members emails, posted abusive messages and signed one up to being transferred to another station without her knowledge in a campaign against colleagues.