( CNN ) -- The job ad listed the many unusual requirements for director of operations -- and still , a few dozen people answered it and set up video interviews : . -- Must be able to work 135-plus hours a week , it said . -- Must working standing up for most hours , often overnight . -- No breaks . -- Eating depends on when the `` associate '' eats . -- Able to manage 10 to 15 projects at one time . ( There are many , many more tough demands on time , emotions and mental skills . ) -- And the work for Rehtom Inc. ( there 's the first clue ) is pro bono . Yes , for free . The job sounds impossible . But the people behind the ad say billions of people do it every day . If you go to the online version of the job ad , there is a link that goes to a video for # WorldsToughestJob , a Mother 's Day campaign on the American Greetings Card Store . The video is a reminder that a mother 's `` impact is endless . And so is her job description , '' American Greetings says on the website . As you might guess , when the interviewer discusses the unique requirements for the job , many a head is shaken and words like `` crazy '' and `` insane '' are dispersed . Eventually , there is the reveal of the true job title -- mom -- and the sentimental among us have to brush away the tears as the tributes to moms flow . The video had been viewed through YouTube more than 4 million times since it was posted Monday . Andrea Mileskiewicz , an associate creative director for Boston-based Mullen , the advertising agency behind the spot , said that because Mother 's Day is such an important day for American Greetings , her team went in with big goals . `` The topic of mom is so heartfelt and so relatable , and we just wanted to make a video that inspired meaningful connections , '' she said . `` We 're incredibly pleased with how people are connecting with it . '' She shared some details about how the ad came to be . Mileskiewicz went home to Michigan where she spent time with her brother , his wife and their newborn , the couple 's second child . And , she said , it really hit home when she witnessed how hard being a mother was for her sister-in-law . When she went back to Boston , the planning for the Mother 's Day campaign was just beginning . She pitched the idea that many people talk about how hard being a mother is , but actually showing it would be a different take on a holiday campaign . Mileskiewicz said as the concept took shape , a team of moms from the two companies weighed in to give it its humor and authenticity . `` They took the idea to what it 's become , '' she said . So Mullen placed an ad in newspapers and online . Craigslist ads linked to a fictitious job description page . Hundreds of thousands of people saw the ad online or in the papers , but only 24 answered it . That kind of proves the point that people think the job is too tough , Mileskiewicz said . Then the Mullen team set up interviews with people who were told they would be helping evaluate the job ad by video conference . The man who described the ad to them actually was an improv actor . Some of the test group came to an office in New York while others used a webcam from home , Mileskiewicz said . Only one person actually started to see the ruse while there . The others sat through about 15 minutes of interviewing before they were let in on the real message . `` Everyone [ who ] came in had no idea had no idea what they were reacting to , '' Mileskiewicz said . `` All of those reactions are completely authentic . '' So , will there be something similar for Father 's Day ? Mileskiewicz : `` All I can say is fathers are just as important , and it 's something we 're already excited about . So stayed tuned . ''
The ad was fake , but it reminds people how hard one important person 's job is . Hundreds of thousands of people saw the ad , but only 24 expressed interest in being hired . People brought in to help evaluate the description were surprised to hear the real job title . The video for the Mother 's Day campaign has been seen more than 4 million times .