Four Foot Eight

Baker Street

An elderly gentleman walks into the station, looks vaguely at the ticket machines, then heads for the barrier.

"Can I see your ticket, Sir?"

The old man idly waves a hand. "You don't need to see my ticket."

"I don't need to see your ticket."

"I can continue my journey."

"You can continue your journey."

He strolls through the gate and heads for the Jubilee line. The assistant looks at his retreating back, starts to say something, then shakes his head to clear it and shuts the gate.