The Yellow Sentinel

I trotted past the driveway and out onto the sidewalk curb when—gasp! A squat iron creature painted blazing yellow stood planted right in the dirt! Two heavy chained caps stuck out from its sides like blunt metallic ears! I froze mid-step, hooves locked to the asphalt. Was it... guarding the street?! Slowly, one shaking inch at a time, I crept forward until my snout nearly brushed the chipped yellow paint. I extended one front hoof and gave the thick iron snout a sharp tap—TONG! A deep, ringing clank shook right through my leg! It didn't flinch. A solid, unmovable yellow sentinel standing guard over the entire block!