Have heard and read several times that EU were going to ask UK for a "divorce payment" of some huge amount, Euro 50-100 Bln. Sounds like a "gangsta song", as it is about twice as much as the whole UK defence budget. Perhaps not a "mortal coil" for the entire economy, but (continuining the soliloquy) would "give you pause" in developing some defence projects. With this regard, does not it look as the first priority for the prime minister (no matter what party he or she represents) to be able to reject or minimize such claims?