A good mantra to remember is: "Every machine in your workshop is actively trying to murder you!"
From gjdale of modelshipworld.com. It sticks with me. I consider the the world outdoors my workshop, so, the mantra applies.
Before I start a task, I like to have the whole work area cleared and prepped. I don't want tripping, snagging, range of motion (or style) cramping; perish the thought through action so the work can get going.
My father-in-law might think I'm a wee bit excessive, but he's patient with my adamancy. We do outdoor chores together, and always make sure the woodchipper is turned off *and* unplugged before any troubleshooting. I love to see that machine unplugged.