So what’s the big deal? A few customs checks on the ferry as it arrives in Stranraer, some extra paperwork at Liverpool docks for containers from Northern Ireland. We can all manage that, can’t we? Well no, because if that is the cost of leaving the European Union there is a much older union that expressly forbids it.
http://www.businessforscotland.com/brexit-has-become-incompatible-with-the-union/