Why not a Labour-Lib Dem coalition?

Nobody seems to be talking about the possibility of a Labour-Lib Dem coalition. This is understandable as the numbers don’t add up to an overall majority, but what if there were an open declaration by both parties that such a coalition may be formed? It is a logical pairing with broad agreement on most policies, certainly more logical than the Conservative-Lib Dem coalition proved. For example there could be agreement over Europe, the NHS, education and taxation, all fundamental issues. Even on Trident the Lib Dems look ready to compromise. So how could the two parties get their joint numbers up to say 330? Today, (April 10) some opinion polls are showing Labour gaining ground, (though still not in Scotland) so it could conceivably happen naturally, but this looks unlikely. So what to do if you are a supporter of either party? I suggest this: declare a possible coalition with a set of agreed fundamentals. Difficult for Labour as they’d have to admit they cannot win outright, but it would have to be done. This in itself may boost Lib Dem support and Labour too as it would allay fears of a Labour-SNP agreement, in other words the SNP would be outflanked. Add a commitment to granting taxation powers to Scotland and it may erode some SNP support in favour of Labour in Scotland. It would also open the door to some constituency agreements in Scotland, where some Labour candidates would not campaign against a possible Lib Dem winner and some Lib Dems would stand aside and let a Labour candidate defeat the SNP. Of course this won’t happen. The idea of hung parliaments is not yet established enough to allow politicians or the electorate to think flexibly enough. Then again, if mistakes like Michael Fallon’s disastrous remarks are repeated, anything is possible.