I have a bad feeling it will be a self fulfilling prophecy, someone with thier finger on a button thinking they're supposed to do it. probably at the end of the Mayan Calendar.

My theory: The guy who was writing the Mayan Calendar just got bored with it and went to do something else (or died?)

Reliability and simplicity are absolute neccessities for a TEOTWAWKI weapon. My AK tears down into a total of 5 parts field stripped, about 12 for a thorough teardown, and maybe 20 parts if I pulled apart the clockwork and internals too. It also offers a decent rate of fire, and a reputation of being bombproof. The fewer components there are, the less there is to go wrong.