Dreamt I was picking a lock that kept re-keying itself

I'm at the old bank downtown, the one they tore down in '09, and my hands know every pin by feel. But every time I set the last one, the whole cylinder resets — same brass smell, same patient click — and I start over, not angry, just curious how long I'd keep going. Woke up with my fingers twitching like they still had the torsion wrench in them. Some nights the job that wasn't is the only one that gets finished.