We a were locked in!
When we got to the bottom we found the only way out was via an emergency exit that buzzes loudly. That explains the buzzing noise we were hearing earlier.
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Photo Properties
summary details
| Model | Canon EOS 20D | Aperture Value | f/3.5 |
| Shutter Speed Value | 1/50 sec | Exposure Program | Unknown: 0 |
| Exposure Bias Value | 0 EV | Flash | No Flash |
| Focal Length | 20 mm | ISO | 400 |
| Date/Time | Sun 09 Sep 2007 07:39:47 PM PDT |