Crustaceans...

Last night I dreamt that while I was walking through a moor, a crustacean shaped a lot like a scorpion pierced the sole of my foot. The wound was about an inch deep and the creature started burrowing and filling the hole up with sand, saltwater and air. It was very painful and I had to rip the creature out, leaving a curved beak embedded in my foot. This would not have happened had I been wearing shoes.