Mind-mechanics/Brainfart/Imprudence Prevention

Tech is a field where, very accutely, it pays off to not do something stupid.
I think intelligent people still are able to do stupid things, things that they in a calm state of mind are able to realize as being just that. Stupid.
For me, the calm state usually kicks in just a half second after the point of no return.
Sometimes I even think through my options, consider the stupid option, discard it… and then, for lack of a better word forget not do it!
So.
Yeah, maybe that’s just me being stupid.
But I think there are others like me, you know who you are!
I also think that maybe these imprudence bursts, brainfarts, whatever, can be prevented… to some extent at least. Self-awareness? Meditation? Breathing techniques? Mallet-on-the-head?
What do you think?