Dean was being pissy again. After the crash, the Impala was absolutely wrecked. Which, unfortunately, lead to the harsh mood of dean, not to mention his dad's death. He was outside, in Bobby's junkyard, the blistering heat making the black surface of the car smoldering hot. Dean was cussing to himself, wiping his burning hands on his ratty gray shirt.
You were sitting on the roof of a shed, watching over him. You were far enough away to not be able to hear their voices as Sam and dean talked, but as soon as Sam walked back inside, dean grabbed the crowbar, slamming it first into the glass window, and then into the trunk of Baby. The noise was loud, prompting you to get off the shed and go check on him.
He was breathing hard, palms resting on the back, head dipped down when you came over, lifting his head to look at you. He knew to soften his tone when speaking to you.
"Hey, sweetheart. Go back inside, you'll burn out here."