Who said anything about under the influence. And with a thousand orders a day they should be highly experienced with all that practice. It's not a physical job, it's a job like most that deserve the best performance they can give. They don't, or can't read and don't pay attention to what the order screen they are looking at says. No excuse for incompetint employees. I'm guessing you work for McDonald's since your making excuses for them and did not read the question. Like a friend said, that's why they can only work at McDonald's. My mistake for asking the question when there's an obvious answer.
Well obviously when there are thousands of orders a day and some customers are under the influence and do not cooperate errors are made
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