This is oddly fitting. I was just a cashier at Wal-Mart for 7 months before I was suddenly tasked with pushing carts from the collection areas to the cart garage (for the lack of a better term). For a while, it seemed easy enough; I even had people helping me. But then, everyone left, and I was the only one out there. And this was the exact same time that things got busy, so carts were all over the place. Thinking that they were running out of carts, I started hauling more than the safe amount of carts; 10 is the limit, I was hauling more than 15. I was stressing out so much, and going so fast without stopping, I went dizzy and nearly collapsed on the concrete. I was sent home afterwards.
I'll just keep this around to remind me not to be a doofus about work. <3