I had possibly the worst brain fart in a match that I've ever had. On a USPSA match today, I managed to accrue 9 procedurals on one stage because I wasn't completely in the shooting box. My foot hit the outside of the box and my brain said "foot on wood start shooting".
Those 9 procedurals cost me a match I would have won, otherwise. Which leads me to the point - visualization. That was the only stage I didn't "shoot" in my head before I did it; and as such I made a royal mess. C'est la vie.
So let's talk about brain farts and how to avoid them! I am a big believer in "seeing" the whole stage in my head before I shoot it. When I do that, I shoot well. When I don't, well...