Strange advice

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