Probably once you start burning your cakes in the ovens.
"Since all men count themselves righteous, and since no righteous man raises his hand against the innocent, a man need only strike another to make him evil."
Make a fire and light it. Then use sticks on the fire for a quick and easy firebrand. It's easier than gathering 2 sticks and manually making one. That shit uses 90% of your stamina and takes 5 minutes to do.