Bahahahaha! HAHAHAHAHAHA! LOLOLOLOL. Wow, I wish you worked for me and I found this thread. You guys are too kind to him with your responses, which I suppose is really nice, since it's Christmas time.
edit: on second thought, the OP has to be a joke, right? Ohhhhh, poooor baby! Had to get the shopping carts from the parking lot! How physically demanding. Maybe you should call in today and tell them that you're too tired from last night. With the lack of sleep that you got, your job performance - pushing shopping carts across a parking lot - is going to suffer. With the few minutes of overtime that you got though, you'll be able to afford some hand lotion for your blistered palms from working soooo hard, and maybe even some tissues to cry into.
On a slightly related note - last summer I worked a couple days at the pizza shop. I wasn't happy with how a wall looked; kind of grungy. And, I heard rumors that the new kid was lazy. I scrubbed half the wall and made him come behind me with towels to dry the wall off. Then, I told him, "okay, see how it's done? Now your turn to clean the rest of the wall." Right when he got to the end, he ran outside and puked from the smell of the cleaning stuff. (Maybe that ammonia was a little too strong? Had I known he was a smoker, I probably wouldn't have mixed it so strong; but then, he'd have had to work even harder.)
I was congratulated by my coworkers for stepping my game up a notch. In the past, when they had whiny kids working for them who wouldn't work hard, I typically made them cry by the end of the first shift I worked with them.