If a monkey takes a picture in the woods, can the monkey claim the copyright? Trademark and copyright laws can get pretty sticky. For the layperson, trademark, copyright and patent sound interchangeable. Find our who called dibs on phrases like "you're fired," "one more thing," and "let's play." Learn about cases where people tried to claim things they couldn't, only to get smacked down in court. If you work in advertising, stay tuned for a list of words and phrases that will cost you a lot of money.

Learn more about your ad choices. Visit megaphone.fm/adchoices