I have no *known* Irish ancestors, but one branch of my family has been in America since the 17th century, and it is hard to believe that no Irishman or -woman appeared anywhere in twelve generations of marriages & bastardies. So I will take care, as usual, to wear something green.

There is some point, however, to Ogden Nash's line:
"And I think that of St. Patrick's Day, St. Patrick never heard.'