Stoics were named after a porch in Athens where Zeno taught. They practiced staying calm and acting well.
Zeno taught in Athens at the Stoa Poikilē, the 'Painted Porch', around 300 BC. His followers were named after the porch. They trained themselves to stay calm and act well whatever happened.
A rancher watching hail flatten the crop, then saying 'Well, let's fix the fence.' Stoic.
A customer churns. Be stoic: feel it, learn the lesson, call the next one.
Practice it in Skepsis