Why is "111" called Nelson's Number?

The number 111 is sometimes called "a Nelson" or "Nelson's" (particularly as a score in cricket or darts) after Admiral Nelson, who allegedly only had "One Eye, One Arm, One Ball" near the end of his life. (This is sometimes bowdlerized to say that he lost "One Eye, One Arm, One Life" during his naval career.) Another suggestion is that the number is derived from his three great victories, thus Copenhagen, Nile and Trafalgar which gives the sequence "Won - Won - Won". A score of 111 or multiples thereof (called "double nelson", "triple nelson" etc.) is considered an ill omen in cricket, because the figures "111" resemble a wicket without bails. Some people, most notably David Shepherd, practiced superstitions around nelsons. In the United Kingdom of the "pre-decimal" days, some bank cashiers used the term a "Nelson" for an amount of one pound, one shilling and one penny (£1 1s 1d). Source: http://en.wikipedia.org/wiki/111_(number)

well acc to me it has something to do with britishers...they consider it unlucky thats their own beliefs...similarl to people think 13 as unlucky..and as u said david shephard standing on one knee coz he is also a britisher..and no other british umpire is present...by standing on one knee they try to minimise its ill effects....