They find it almost intolerable having to coexist in the same city.
But yesterday Scottish football’s bad neighbours just about managed to take what they needed from their final skirmish of the season in a blockbuster of a match which just might end up as a microcosm of an entire season.
Celtic escaped with the point which means the title is now secured barring an unforeseen act of God. And Rangers got out of the east end with pride intact and without incurring further casualties ahead of a campaign defining Europa League semi final second leg against RB Leipzig.