See what Fran found here, in which the Tories speak of a possible coalition with Lib Dems in the event of a hung parliament next time round.
And, iirc, there was a possibility of a hung parliament in 1992. Opinion polls predicted a very close election, though, in the end, the Tories got a clear majority.
Labour in Britain could only break the previous two-party system that ruled for two centuries only because there was a massive expansion of the circle of eligible voters (adding poor people and women). *Lunatic*, n. One whose delusions are out of fashion.