Prior to Sochi, have countries completely or partially boycotted Paralympic games as a political protest in and of itself, without it being the follow-on of the Olympics being boycotted?
Non-example: Elbonia boycotts Sydney 2000 Olympics, and also boycotts Sydney 2000 Paralympics.
Valid example: Elbonia competes at Sydney 2000 Olympics. Part of the way through the Paralympics, Australia announces it'll resume culling of kangaroos. Elbonia ceases competing at the Paralympics in protest.