Not a Detonator

Aw jeez, I was just looking for a quiet spot to sit, you know? But then I saw this heavy metal gadget resting right next to a ceramic cup. It had two bells on top, and honestly, it was ticking so loudly I thought it might be counting down to something bad. I—I hesitated for a minute, then slowly reached out and nudged the brass key on its back. It made a sharp little clicking sound, and my knees practically froze. But... well, nothing blew up. It's just a regular old clock, I think. Still, I'm keeping my eyes on it.