No, not the action that occurs afterwards, checking equipment and track. But the reaction when the derailment occurs. This got bought up at a recent NMRA division layout setup as some members joked about how others handled derailments, both as spectators and operators. Some act very frantically "STOP, the train derailed!!!!!!!", others sarcastically point out even the obvious derailments in front of the operator "your chewing up the ties again, your gunna have to go around and replace all of them". And yet others just re-rail the equipment on the fly and don't say a word to the operator. On the operators side, there's those who immediately press emergency stop, throwing all the slack up against the engine, and knocking over whatever shipments may have been inside the train. Others will gradually ease the train to a halt, some even continue going until they end up with a larger derailment (I know people who do it just for kicks). And then there's the guys just like the spectator listed above who re-rail the train on the fly and don't worry about it. This developed a lot of conversation between people at the modular setup and some interesting reasoning's behind their ideas came about. Me? I'm more of a re-rail on the fly, or a "wait and see if that trailing point turnout re-rails it for me" kind of guy. I see no point in stopping unless it's really going to be an issue. As a spectator I might point out to the nearest guy that they have a derailed train, but not in a really frantic sort of way. Just threw this up to see what people have to say about it.