Quiz: How Insulting Are MPs To Each Other In Parliament?

The "Your Mum" exchange between David Cameron and Jeremy Corbyn showed how Parliament can be an unforgiving place. But the political insult has a long and noble history.

While MPs have to abide by rules set down by the Erskine May hand-book, prohibiting "unparliamentary language" such as "stoolpigeon" and "guttersnipe", many have hurled abuse regardless. But which really did happen at the heart of British democracy?