A number of public reviews of DPR's infosec mistakes have been
   published.
   I think a strong solution to the 'tackled in library' defects would be
   to have:
   1) program to notice his magic bracelet is not near
   2) program to notice that vid cam is not a head but a chaotic scene
   #2 is particularly easy without extra hardware (ca. 2015)  You'll have
   to switch it off when you
   visit the loo.
   And of course, things like 'back to wall facing forward' would have
   been helpful.
   Claustophilia is a useful trait.

   I wish to God these calculations could be done by a
   steam engine, Babbage complained