Lol why would the UK need to follow in Yugoslavias footsteps?
Have you read article 50? Do you know what a customs union is? This isnt jail or the Russian mob, countries have the right to depart if they want without pissing off the whole of Europe ,
As well as Europe being angry for two years theyve also made it as difficult as possible for the UK to leave and used the international media to trash them? So who would want to stick around for that behaviour ??