Nah, my job isn't mind numbing, boring, or monotonous. I'm a geologist by education and work experience, and I also do a lot of biological work with endangered species (I'm a licensed geologist and federally permitted consultant that works with private clients, and also with city/county/state level clients as well). About 4 years ago my business partner and I opened up a shop, and that has been more rewarding than working for a bigger company even though it's the exact same work. At the heart of it, I enjoy lining my own pockets instead of someone else's - which was the real impetus for going out on our own.
Having a small business comes with its stresses for sure, but there is also a certain amount of freedom and control as well. I can't say that I love every aspect of my job, but I'm generally happy with what I do for work.
With that said, my work is not my life. I definitely "work hard to play hard". I work decently long hours most of the time, and I'm not a slack off. But I definitely work to live and not the other way around. A few years back I disconnected my work email from my phone, and my work computer stays at the office (and I don't even have a home PC). I do my work when I should be, but when I am home I spend time with my wife and son and don't think about work to the extent practical. I generally find more pleasure in my family and hobbies than I do in my work. My job is just a way to provide for us and to let us live life the way we want to.