I make the guard stand in his place, Spur the courier to run his race, The backbone of your backyard’s border, I denote what’s later in the order.

Step on one of me and you're in for pain Pull out one of me and the same again Paint either of me and you're fine

I have a head, I make sound, but no face. What am I?

When thunder speaks, I lose my nerve, I blink and stutter, as if unsure. Not out, not on, a pulse obscure, I warn you that your electricity may not endure.

A heavy hand makes me thick, steady. On-screen, turn me on and I'm ready To be the type of face that lures any gaze. My body allures in its own ways, but for you I'll cross lines, overstep, and bend. I stand out, but I'm too popular to offend.