Isn't it funny that although we know the train is gone, we keep on running, trying to catch it... Even if you know it is gone a long time ago, you know there is no chance to catch it, you still keep on running. You know it would be better just to wait for the next one (or to wait until this one passes by on the way back if you are fixated on the carriage), you still keep on running... While running you might up discovering that the light at the end of the tunnel is a train coming your direction...

Isn't it funny, that you always start using stupid metaphors, stretching them to the bitter end and end up talking crazy stuff...