You may scoff, but being a GM really helps your writing.
How the hell do you think I got so good at plotting? I have to deal with characters who can and will fuck up my plot...not because of some vague metaphysical reason, but because they are evil bastards named Scott and George and Lucy and Nike.
Nothing gets your plotter brain working better than having a party up and murder your bad guy 2 hours into the adventure, before they're even supposed to know he's a BAD GUY yet.
How the hell do you think I got so good at plotting? I have to deal with characters who can and will fuck up my plot...not because of some vague metaphysical reason, but because they are evil bastards named Scott and George and Lucy and Nike.
Nothing gets your plotter brain working better than having a party up and murder your bad guy 2 hours into the adventure, before they're even supposed to know he's a BAD GUY yet.