"We're not a 12-step program where we're trying to change our ways," says club president Leland Carlson, 71, of London, where the club, known as DMC, is based. "We're a two-step program: We admit we're dull and we're gonna keep it that way."
The club, which Carlson founded in New York City with a few bored -- and boring -- pals in the mid-'80s, has remained true to its founder's words. It's never grown, it's never held an event and it's never had a membership drive.
It recently added the eighth International World Potato Congress to its events calendar.
"When we were in New York, we limited ourselves to 17 members because that's the number of chairs there were in the room," Carlson recalled, tongue planted in cheek, during a phone interview with AOL News.
While membership has dwindled, interest in the club and its curious pursuits has increased. The club keeps a database on more than 400 luggage carousels from around the globe, assiduously noting the rotational direction of each one.
Over the years, travelers have written in about airports in far-off locales, such as Yerevan, Armenia and Libreville, Gabon, to let the club know whether the carousels move clockwise or counterclockwise.
Though Carlson plays a bore, he is, in fact, a Merced, Calif., native who lived in Nebraska and New York City before moving to England 15 years ago for work. Wary of being labeled interesting, he explains that even dull men are prone to variety.
"There's more to leading a dull life than watching paint dry," he said. "Of course, we like to watch paint dry. But we like to watch wood warp, too. We get a bucket of water and put wood in it. And if we're feeling pretty frisky that day we may take bets on whether it warps concave or convex."
Were the DMC ever to have a membership drive, it might find some actual takers. And it might find that unapologetically dull males exist just about everywhere.
For example, comedian Dan Nainan doesn't have an outwardly vapid existence. Just last week he did a stand-up routine for 2,000 people at the Kennedy Center in Washington, D.C. But what few people in the audience would realize, however, was that he was in bed by 11.
"People don't realize how boring I am," said Nainan. "I don't drink. I don't smoke. I don't do drugs, and I never have. After a show, I'll go out to dinner with a friend,and then go home and read a good book."
For Nainan, the most anxious part of his job comes after shows, when interacting with female fans who assume he's a riot offstage as well.
"When girls meet me, I think they're disappointed," Nainan admitted. "The truth is that most comedians are morose and unhappy people. They almost never laugh."
Lauren Mackler, a life coach and former psychotherapist, equates dull with being socially challenged.
"If someone identifies themselves as dull," Mackler said, "they've been wounded, even if they say they're proud of being dull. It's probably someone who's bright and intellectual, but was bullied at some point in their childhood."
For Carlson, however, there have been no lowlights in life. In fact, there have been no highlights, either.
"Only 'medium lights,' " he said. "Anything else would be too exciting."