Football fans are supposed to be partisan. They love their side; they hate their rivals.
It's why the half-and-half scarf, representing both clubs playing a given football match, just shouldn't work. Surely, the only ones who think otherwise are football scarf salesmen?
And if you were in any doubt, the following clip of a Manchester United fan kissing the Spurs badge by mistake when the cameras panned his way during their Premier League clash should set you right.
Still having a bad day? This will help. A ManUtd fan who kisses the wrong side of a half and half scarf . http://t.co/AkfEvTxxxA— TeaAndBusquets (@vinayak_afc) January 2, 2014