Silverfish worked every day of his life, colonizing and protecting the caves of Minecraftia along with his bretheren. He was intelligent, but only as a domesticated canine is on Earth. He was able to comprehend basic Craftan, and respond to basic signals. But there was seldom an opportunity to show this intelligence, or for that matter to see anything other than the inside of a dreary, twisty tunnel carved deep into the rocks.
That tunnel was his own, the tunnel he'd worked on since he was a small grub. The Queen gave every small Silverfish who wasn't an Abberant a plot of land to start digging a home in. Three meters a day, round and round the plot. That was all Silverfish did; he dug, and ate whatever he could find. He was expeditious in his quest to create the perfect home for his mate (if he ever found one).
But one day, he dug out of a wall of rock, into bright, hot, unbearably glaring daylight. His eyes reeled. Silverfish, with the self-preservation instinct of a lemming, hurtled himself back from the light, into a darker spor which happened to be the cave. He ran into something, and twisted hsi head. It was another Silverfish, a worker. It was dead, green blood coursing out of multiple stab wounds. Silverfish knew enough about grief to stand beside the body for two seconds, in mourning; then he hurtled into the cave. He squirmed across the ground as fast as his tail could propell him.
Ahead he could hear grunts, the click of a pickaxe, the slash of a sword, the hiss of his friends he'd known all his life. He struggled to build more speed. As he turned the corner into a deeper reach of the cave, he saw a Minecraftian, back turned, hacking at a shiny green rock.
Silverfish didn't have time to register what happened after he attacked the intruder. But he did see the blue edge, sharpened to a point like the scythe of the reaper, sail towards his head. Then, there was nothing.
The miner cleaned the tip of his pickaxe, a viridian hue because of all the fresh Silverfish blood. He then finished mining the emeralds, and walked out of the cave whistling.