• dropping a camera+lens into a lake and, while expecting it to somehow float, you're surprised at how fast it sinks into the darkness.
• being on the front steps of an elegant, vintage hotel (built in early 1920's) shooting a celebrity portrait in the evening, so that the hotel lights might sparkle in the background. With your strobes' power pack plugged into an old electrical outlet near the front steps, the very first shutter-press instantly blows all the power to the hotel entrance and driveway, the front lobby and the hotel's Christmas display. Angel of mercy (i.e. Vivitar 285) comes to your rescue.