Dream moment; Boris does a deal to merge with the Brexit Party, then calls a vote to end the Parliamentary session and hold a General Election. Corbyn back the vote. But a load of Tory and Labour moderates decide they've had enough, swap to a reformed and rebranded Liberal Democrats, and vote against. The new party then votes down the government. Comprising over half of Parliament (possibly with SNP support), the new party winds up forming the new government for the remainder of this term (so through to 2022). It'll never happen. But it would be an amusing retaliation by MPs on both sides of the isle, who are increasingly under threat of reselection over the shifting directions of their respective parties.