Operating under the name Sam’s Roaming Cafe, he has been documenting his goal of creating coffee experiences in unusual places and sharing them on social media. Mr Netherton, who studies actuarial science at Queen’s University Belfast, moved to London in June to begin a year-long insurance internship. Mr Netherton said: "So as any logical person would do, I bought a generator and set up a coffee shop on the tube." Videos on his TikTok account @samsroamingcafe show him brewing coffee inside a moving Tube carriage and handing out free cups to commuters. For now, Mr Netherton plans to keep exploring unusual settings for future pop-ups as he builds experience, supporters, and eventually, funding.