Oneway screws
One way only screws are available easily enough, most extension blocks in the UK use these nasty pieces (they are typically slot head screws but with a slope on the 'undo' direction rather than the flat surface so as you try and unscrew then the driver merely slides up, when doing up that direction has the normal flat surface so works.
As to the 'pin' idea, if thats all that holds the back from unscrewing I wonder if it is nicely hardened so my battery powered drill wont just go straight through it.
Is the lock made by apple? Sounds like a triumph of marketing over actual design
Biting the hand that feeds IT
