http://www.perlmonks.org?node_id=1004718


in reply to When writing code for end users, what operator error surprises you the most?

Detailed notes in Flashing Red Letters? I hope you've read the WCAG 2.0 detailed guidlelines on photosensitive epilepsy. To generalise, no more than 3 iterations of a flashing nature within any time unit of a second, where the colour of the font is Red. y'know! :)

For further info http://www.w3.org/TR/2008/REC-WCAG20-20081211/

There may be an rfc round here somewhere too...