This is a six-month-old story, but I'm not sure why it didn't make more noise when it happened. Last June, Democrats in the Oregon legislature attempted a nutty little bit of political chicanery. After some anti-tax groups and Oregon Republicans began agitating to put recently passed tax increases to a popular vote, Democrats tried to sneak the following language into the bill:
"A measure referred to the people by referendum petition may not be adopted unless it receives an affirmative majority of the total votes cast on the measure rejecting the measure. For purposes of this subsection, a measure is considered adopted if it is rejected by the people."
Emphasis mine. Yep. You read that right. They attempted to pass a law defining yes as no, and no as yes. They pulled the language after local media got wind of the cunning plan.