It's really not THAT hard in terms of other jobs, but the salary and treatment kind of reflects that. Plus, I'd get bored at a job like that real easy, and that's bound to get me in trouble.
I've never worked at McD's, but my first job was food service (waitress at denny's when i was 17) and it wasn't hard AT ALL. It was fun, and i should have stayed waiting tables!
I'm sure making food/taking orders at McDonalds is easy as pie!!