The Volokh Conspiracy
Mostly law professors | Sometimes contrarian | Often libertarian | Always independent
"If You Throw a Skunk into the Jury Box, You Can't Instruct the Jury Not to Smell It"
Some colorful lawyer wisdom (see, e.g., Dunn v. U.S. (5th Cir. 1962)); I found versions of this in newspapers going back to 1931, though it may have been a familiar phrase even then.