Northern Ireland businesses are already signalling that they fear a heavy administrative burden in the future on goods transported to Britain after Brexit.
Meanwhile in the South, the Governor of the Central Bank in Ireland, Mr Gabriel Makhlouf has also said; "Consumers, businesses and regulators should expect, and plan for, more frictions and divergence.”.
He added that there are no straightforward answers about how much divergence businesses can tolerate or manage.
"But minimising that uncertainty by using the transition period to plan for change would be my advice to all businesses, all consumers and all regulators," he said.
Form filling and friction seem to be the watchwords of the moment. Stalker can imagine someone conjuring up another word beginning with F to add to that.