There were lots of signs on the road to Pettigo. Caution. Hidden dips. Blind summits. They seemed apt in an area bordering on Brexit. What economic humps and hollows could that huge event bring for a village that straddles two jurisdictions? What political worries might appear over the crests of hills in the future, like the buffalo heads of articulated trucks that I was seeing, if the UK crashes out of the EU on this month. Could solace be taken from the half-formed rainbow spotted en route?Brexit is preoccupying the people of Pettigo – not difficult to understand given that the border splits the village in two. Pettigo is in the Republic of Ireland and Tullyhummon – or ‘high street’, the other half of the village on the far side of the Termon river – is in Northern Ireland.