The above shot was not an accident, but one I made on purpose. The birthday party I was hired to photograph had not started in earnest yet. The room was mostly empty, but the guitarist was already playing. My DSLR was already mounted to my tripod for some wide shots of the party space, so since I had the time and opportunity . . .
The room was crazy dark, so I knew I could keep the shutter open a good long time (10 seconds) without overexposing everything. The guitarist was not exactly rocking out, but even with his slight moving and strumming over 10 seconds it was enough to make him look unrecognizable. Of course everything else remained still in the frame creating what I call an "out of phase" look for the subject (the guitarist).
A lifetime ago I was studying computer engineering at USF, and even before that getting my first taste of physics in high school. I became and have remained fascinated by how vibrations basically keep us in this dimension. If we could engage a phase shift, then could crossing dimensions be possible? In my imagination at the time of making this shot, the guitarist was going through just such a phase shift.
Thus, tripods and cable releases are not just for taking landscape photos. They are great fun to experiment with and possibly reveal other dimensions.