Bladderman keeps his briefcase on his lap. He uses it as a substrate for his Sudoku. A bag and a coat lay on the small table in front of him. He puzzles intently and fills in the numbers with concentration.
Every day, between stations X and Y, he stands up. He takes his coat over his arm and takes his bag and briefcase in his hand. Packed, he walks out of the compartment and to the restroom. After a few minutes, he returns and sits back down in his seat. Every day. Between stations X and Y.
Sometimes, he makes an unsteady chat with the Candy Crush lady.