You know the one. That little nagging voice in the back of your head. The one that says "better park closer to the street light in this part of town" or "lock your doors even if you're just going out on the back yard" or "Grab the .357 Magnum if you're going to be hiking somewhere there are predators". That voice. The one that knows where hunches come from. The one that lets you know when something's just not right.
Listen to it. It is the voice of experience. It is the culmination of thousands of years of human evolution, where we, the hairy pink apes with no claws, horns, or teeth to speak of managed to not only survive but make it to the top of the food chain using nothing but our wits, opposable thumbs, and tool-making and using abilities. When that voice speaks, it is drawing upon the collected wisdom inherited by countless generations of what has - and has not - worked to keep us safe through the ages.
In my case, that voice was saying "you're overdoing it and you're going to be sore as hell on Monday" - and it was right...
That is all.