Xipe Totec
Something nasty in the woodshed
Don't say that. How about Nicola gets independence, then, they move the border South, to say, Watford. The new enlarged Scotland joins the EU. What's not to like, unless you live South of Watford. Actually, they only have to move the border to Middlesboro, and I will be happy.
Seriously, if Scotland does become independent & rejoins the EU (more likely SM & CU first) I can see that being a massive kick up the ar$e for whoever's in Westminster to start moving towards rUK doing the same.
It also occurs to me that the threat (for those who see it as such!) of the breakup of the Union would be reduced, or at least massively delayed, by the UK coming over all rational & rejoining the SM & CU.
And they'd be able to blame Scotland for it, so everyone wins!