You got that dialog only if you were (un)lucky. System 6, 7, and 8 could crash in spectacularly visual ways, as some off-by-one memory access wrote into the VR

You got that dialog only if you were (un)lucky. System 6, 7, and 8 could crash in spectacularly visual ways, as some off-by-one memory access wrote into the VRAM. I remember it was a point of pride that macs crashed in ways that Windows BSODs could only dream of.