*lol* That's indeed more complicated for the DM to make a good job
(especially after a couple St-Ambroise
)
But still I think most DM should be able to improvise from the plan /scenario as often as possible. The job of a DM isn't to follow a scenario, it is to entertain
So the DM should always keep the players on their toes by mixing calm moments and rushing encounters, as he see fit for the game mood.
I don't understand experienced people complaining about a bad adventure they bought. If you don't like parts of it, well change it, or make the game go faster to the next cool parts.
Joël