Is there a credible conservative case for voting Yes to same-sex marriage? This critical question has been addressed by, among others, the Liberal party ‘bed-wetters’, the most shrilly vocal of whom is Christopher Pyne. Mr Pyne, when he’s not shooting his mouth off in Sydney’s gawdy Cherry Bar, has offered the opinion that ‘because I’m conservative… I think that [same sex couples] should be allowed to be married because I’m in favour of more marriage, more commitment, rather than less.’