It was from mapreader's post on the "uk thread info" thread
The link is:
http://www.thisismoney.co.uk/investing/share-tips-and-fund-tips/article.html?in_article_id=491709&in_page_id=23&position=moretopstories
Note: the bit about 500 units mistakenly calles him "Gow" instead of "Dow".
Cheers.