My Mum always voted the opposite to whatever my Dad voted. This went on for decades, she knew he was a life long Tory voter and she always voted Labour. One election year she asked him what he had voted and he simply mentioned the Labour candidate by name, saying he had always liked him. Mum took this to mean he had voted Labour so dashed out to vote Conservative. When she came back he asked her which party she had voted for. Mum proudly told him Conservative. He folded up the newspaper and said 'Well,that's two votes for him then from this house' She was furious
I've got another 'keen'... Ouch!