It's a routine attack ad from the Dion Liberals, presenting Stephen Harper as a clone of George W. Bush.

But 22 seconds into the half-minute TV spot, the commercial shows a quick clip of a senior couple smooching behind a subtitle: Strengthen the safety net.

The couple are Jean Macintyre and her husband John, a retired judge of the B.C. Provincial Criminal Court. Jean Macintyre has for several years been the president of the North Vancouver-Seymour NDP Constituency Association.

As a longtime New Democrat, she's working to promote her candidate Michael Charrois, and to defeat Liberal incumbent Don Bell.

Dumbfounded to see herself and her husband in the ad, Macintyre says the video clip was taken by one of their sons in a Lower Lonsdale coffee shop a couple of years ago. How it fell into the Liberals' hands is a mystery to her—and to the son.

While the Conservatives are confessing to a plagiarism rap that would flunk them out of English 100, the Liberals may have to apologize to the Macintyres or perhaps face a charge of invasion of privacy.