Responsibilities is a 1987 annual story.
Percy has to spend the night in the shed at the big station with Gordon. Gordon tells Percy about the responsibilities he has to keep the railway running efficiently. The following day, Gordon has to push Percy to the water tower. However, when it is Gordon's turn to take on water, he cannot move. His valves have jammed. Percy has to shunt Gordon back to the shed, and Percy feels that it is wise not to say anything at all.
- Thomas (not seen)
- Henry (mentioned)
- James (mentioned)
- Toby (mentioned)
- Duck (mentioned)
- The Fat Controller (mentioned)