At the bottom of the page, the article implies that the subject of the ad started to strum the piano, at which point I realized that they had reason to laugh; t

At the bottom of the page, the article implies that the subject of the ad started to strum the piano, at which point I realized that they had reason to laugh; the subject of the ad was a professional comedian, thus: "They laughed when I sat down at the piano, but when I started to play they really bust a gut!" So really, this was the story of a total success.