Anyway i would complain when it was 5minutes late. "This is ridiculous!! How can the trains be so bad here!!!".
Now having lived in the USA for almost a decade i will never again complain like this. I long for the 90minute each way commute on a train that was silent and silky smooth. The 5minute delays here and there wasn't nearly as bad as i thought at the time. I just didn't have perspective.
This article has no precise details on the time trains are delayed. It just says they often run late and gives vague non-specific "The degree of lateness ranged from minutes to several hours" and it's really not based in fact. You can ask anyone anywhere in the world what they think of the delays on their train system and even for the world class train systems people will complain due to the lack of perspective while not realising just how lucky they are.