I always thought jobs advertising that they are looking for someone with "passion" as a ploy to trick the bright eyed and naïve young into overworking before they become disillusioned.
I've actually enjoyed most of the "menial" jobs I've worked. The only unenjoyable job I worked was only unenjoyable due to piss poor management. Now I enjoy working as a software engineer, I like what I do, but it's still just a job, just a way to earn a living.
I'm reminded of Office Space on career advice: "[The question from a guidance counselor of what you would do if you had a million dollars] is bullshit to begin with. If everyone listened to her there would be no janitors because because nobody would clean up shit if they had a million dollars."