Re: A few thoughts...
Gibraltar had crossed my mind. No way they could cope with an actual border crossing - imagine commuting to work every day through full customs - and they voted to remain at something over 90%. So, yes, the Rock will join Spain fairly soon.
Not sure why the Italians or Greeks should be sending refugees to Calais. How long before the French suggest that we really ought to sort it all out in England? You know, inside our border.
The Scots are quite sensible compared to us English so I suspect the outcome of a second vote for an independent Scotland, if held, will depend on the price of oil and the view of the viability of a smallish country.
Now, will the yanks want nuclear weapons in Holyloch - billeted on another country so to speak?
Multiple VAT/Purchase tax rates spring to mind as well. Could be casual work for some?