Undeserved credit
I did a BBC Micro to Spectrum port, way back in 1984, for a game which went on to be one of the most famous educational programs of all time: Granny's Garden. Recently I discovered that I'm listed as one of the authors!

It was a pile of shit, however; the code looked like an autistic monkey had been masturbating too near the keyboard, and had repeatedly banged random keys with his flailing fap-fist. I queried how one twisted section was supposed to work, and the original author couldn't fathom it out either...
(moon monkey is busy making memories worth repressing, Tue 7 Aug 2012, 14:53, 3 replies)

Funny how that happens.
I was looking though some code I'd done in 2003 a while back. It was to convert a number into it's equivalent text, in Portuguese, and break it into a second line before character 66 so it could be printed on a cheque.

I had put a fair few comments in, but several of them were totally baffling - I'd written stuff like '2nd break left 14 don't use ordinary length'.

Not a clue what it meant.
(username failed moderation, Tue 7 Aug 2012, 15:04, closed)

Sounds like...
... rally course notes.
(gordonjcp, Tue 7 Aug 2012, 18:44, closed)

OK, for the programmers amongst you, here's a sample of the code
...which is so brain-buggering I still remember it:

It was in Basic, with line numbers and everything:

...
1000 FOR n = 1 TO 10
1010 GOSUB 5000
...
...
5000 REM subroutine
5010 ...
5020 NEXT n

yes, that's right, a loop which opened in the main body but was closed in a subroutine. Due to the unusual structure of BBC Basic, which kept separate stacks for each kind of control structure, this actually worked! But try porting that to any other language...
(moon monkey is busy making memories worth repressing, Wed 8 Aug 2012, 14:01, closed)

Ha!
I remember playing that!
( SauronWibble I'll hold it, you lick it..., Tue 7 Aug 2012, 15:47, closed)

Grannies Garden
my teacher almost had me taken to a priest when I solved the connect the five points puzzle and came up with the required pentagram on the first attempt.
(Phooey I COOK MUD, Wed 8 Aug 2012, 10:47, closed)