I had just started a new generation early in my first game. The little guy I adopted had a job that sounded like it was a workshop profession. So, having just inherited the house, he had a ton of money in the bank from his parents saving up before they died. As a way to make him happy, I bought the workshop upgrade. Then I realized he worked in the office. -headdesk-

I've also bought the wrong professional magazines before. But most of the time I've been able to return them.