I >THINK< the phenomenon is called the tribolectric effect (has nothing to do with natives being restless).
When I was a kid my father showed me that with wha the then called 'friction tape (?)' if I remember right - kinf d of like black cloth electrical tape before PVC was hip. I also think it's the same effect seen crunching a certain kind of 'LifeSaver' mint (Wintergreen?) in the dark (only visible when atempting to observe phenomenon). It's also responsible for electrical noise generated by movement of insulated cables. To bring it back to pinhole, I do not know if it causes fogging. Email me off-list if you want to know about more useless trivia like the 'Frito effect'. (Although it's been said it's not useless if someone asks!) Film update : Due to lack of time I volunteered some of my 5" aerographic film to a fellow list member who was willing to be a "guinea pig" and test it out. :O) Murray
