I work as a Lab Technician at an International Coal Mining company. I spend my days doing quality control during my 12 hour days/nights for 4 days. It's really taxing and labour heavy since every 6 hours I carry 20lbs of coal up 4 flights of stairs and then crush/pulverize them and go back down to burn them in ovens... but that's my job. I constantly am covered in coal dust that I can't scrub off, keep getting told my life is being cut short for working nights and the amount of coal I'm inhaling, and get sick quite easily from sharing a bus with 50 other people but I do enjoy it. Our laboratory has a cat and my crew is exceptional and I get a fair bit of exercise running up the stairs 20 times a night. Plus I get 4 days off and can go buy whatever I wish which really helps when a special limited edition of a game comes out because I NEED IT.
Other than that.. before moving to the laboratory, every summer I worked at this coal mine as an assistant in the office before going back to school.
Before THAT I worked at Blockbuster which wasn't a bad job... other than the bad pay... but it was only part-time. I did have fun keeping up with a lot of films and games that came in early. It was always nice having an opinion about a movie so you can tell a person what you think of it and have them judge whether they wanted to rent it. Made me feel like I mattered sometimes.