Glass Reflection Showdown

Evening set in, and the dark glass patio door turned into a giant black mirror! I marched across the hardwood toward the outside view and froze. Another beast was standing right there! Big yellow eyes, gaping red maw, white claws cocked—staring right down at me! I roared and stomped forward. It stomped right back! No retreat! I lunged straight ahead and slammed my snout flat against the cold surface—THUNK! The phantom snout hit mine at the exact same second! I blinked, dragged my rubbery nose sideways leaving a squeaky streak on the glass, and realized it was copying every single roar. I puffed my chest out and held the gaze!