Routine OHE at 07:15 with dexmedetomidine–methadone premed, propofol induction, isoflurane maintenance, and full monitoring (ETCO2, Doppler, SpO2, esophageal stethoscope). Everything was rock solid — ETCO2 36–40 mmHg, MAP 75–85 — while the pulse ox insisted on 38% and shrieked like a smoke alarm just because the tongue dried out; anyone else feel their equipment has a sixth sense for the moment you say “looks great”?