Cracking open the Radio Shack TRS-80 Color Computer (CoCo)

We larcenous little hackers figured if the store personnel weren't paying any attention to us then it was fair game to csave games after disabling autostart with a strip of paper. I was in awe of the programmer who wrote the Spectrum Analyzer "game". Way under one kilobyte, IIRC.
Some later games would write back to the ROM address space to spoil that scheme, so we built RAM packs with write disable switches.

If you tried to exit without saving, the editor asked the usual "Are you sure?" and then "Are you REALLY sure?". If you insisted, it would return you to the command line after echoing "I sure hope you were right!".

Sorry, redundant.