Kerry O'Brien became part of the horde jammed into South Station and the platforms in the evening rush as service proved unable to deal with wet rails or something.
And you can only imagine what it was like to get on a train at Yawkey on the Worcester Line. But just in case, Keith L describes it for us:
Missing 521 express train... conductor said no idea where it went, disappeared into thin air I guess! This is a bunch of people trying to cram on the local to Framingham!