Urban myth
Apologies in advance to our hard-working and under-appreciated sub-editor, but the urban myth I referred to in this week's column with respect to 'Invalid Syntax' concerned disabled people, not hypochondriac devs. The joke lies in the way you pronounce the inflection in the word 'invalid'.
Its not my joke, mind. It is an urban myth. I first heard about it in the 1990s on CIX. I wasn't aware there was another urban myth about the same error message concerning hypochondriac devs, hence the confusion.