Wise Advice

My great-grandfather used to tell me, "Don't chase after oysters because you'll only end up with a platypus in your toe." I never quite understood his advice until one Thanksgiving, I was gardening with my best friend Bertha. All of a sudden, we found an underground tunnel! It was awkward and spooky sounds came from deep within. Bertha saw something interesting inside, jumped in, and I never saw her again. Great-granddaddy was right!