A Clattering Rattle

What is all this fuss? My arms felt stiff, stretched straight out into the empty air. I blinked, shook my shoulders, and heard the round lid perched crookedly on my head give a sharp, rusty metallic squeak. I pulled my hands in, gripped the cold rim of the can beneath me, and gave it a solid thump. Clang! Ah, noisy and harsh. Just how it ought to be. I rested my palms right on the dented edge, keeping my chin low.