No need for defence I gave a sensible response to the op and was met with the normal response from you and yours - how much do you expect a person to take?
Some might say that this potential border issue is exactly the type of thing that European integration was designed to prevent.
Still if all else fails you can stand on your white cliffs waving strings of onions and flicking the vickies at them.
I was in California when we came out of the ERM. The pound plummeted like a stone when we where there, This was under the stewardship of Norman Lamont, who famously said :::
"On 16 May 1991, Lamont stated in parliament that "Rising unemployment and the recession have been the price that we have had to pay to get inflation down. That price is well worth paying ! "