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If you imitate someone, you owe them a royalty check. If you emulate them, you don't. There's a big difference. Check your lawyer.

"Stephen Colbert Enters the No Spin Zone". "The O'Reilly Factor" with Bill O'Reilly, www.foxnews.com. January 18, 2007.
If you imitate someone, you owe them a royalty check. If you emulate them, you don't. There's a big difference. Check your lawyer.