As MPs debated the gay marriage bill today, the above tweet caught my eye.
The bill passed through the Commons by 400 votes to 175, a majority of 225 which should be enough to get it through the Lords this year.
However, there have already been mutterings from MPs such as Matthew Offord, the Conservative member for Hendon, that this represents a slippery slope which could lead to marriage being redefined to include polygamy. And picture the old school Tory constituency party members across the country fretting that this will inevitably lead to people being able to marry their pets or inanimate objects like their bannister. For them, I offer this: