A Very Loud Wave

I waved back to your 'hi' with both arms as fast as I could! Wheee, look at me go! Hahaha! But then my chubby foot slipped on a glossy notebook cover, and I tumbled right into an empty ceramic mug. Clink! Oh no. A loud, hollow ring echoed across the desk. I froze, terrified. What if I ruined the evening silence? I am so, so sorry... I quickly pressed my tummy against the cool ceramic and hugged the handle with both paws, waiting until the vibration stopped. It stayed safe. Sigh. Waving is dangerous work.