I was thinking mainly about tiny programs, things such as 32 byte intros and how many of them are accidental happenings. When I first started programming I often had happy accidents.
I remember a very old program I wrote on the Spectrum in Z80 assembly language that merged some garbage with the screen, the results were a really nice disintegration of the display. It wasn't what I expected to happen and I never understood why it worked for a long time, but was happy with the result!
Then I think about RDC's experiments with Chladni and the other guys here who are experimenting with various types of textures, some of that has to be accidental right?
What about the Xor texture? Who invented that? It's brilliant.
These days I don't have so many accidents as things tend to happen pretty much as I want, but I was just thinking if anyone else has them. If so, have you managed to use them in a demo or intro?