Or chatting off topic and preventing play.This is context dependent. You are also in charge of pacing, which means sometimes you have to cut players off when they are spinning their wheels or soliloquizing.
Just because it's random doesn't mean it has to be unimportant.Yeah. I wrote my own, so it's not as bad as when using the prefab modules, but it's pretty obvious to everyone when I start using one of my random encounter tables to fill a gap in my prep.
After the game I am a lot like George Costanza and the comeback: I think of great things I should have done.
- I'm a little too soft as DM; I've caught myself indulging in Monty Haul a few times. <-- This one, I think, is a simple problem of inexperience and not knowing how properly to calibrate the whole monsters-versus-players-versus-treasure thing.
Ironically, this is exactly why I don't prep much.The railroad is underrated. Me and my players ain’t got time for meandering non-important stuff. We’re old and every hour takes us one step closer to senility.
I also don’t know how to handle languages spoken, which is a problem, because one of my players LOVES that stuff.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.