A sidebar about the tube and its tendency to react to any sort of weather like a neurotic Valium-dependent, constantly on the verge of hysteria.

In the summer it's hot so the trains don't run properly, in the autumn there are leaves on the track so the trains don't run properly, in the winter it's cold and it might snow so the trains don't run properly, in the spring it rains so the trains don't run properly.

What planet were these trains designed on?