More insightful journalism from Robbie Savage... It is a fact of life that Liverpool and United fans don?t like each other, but that doesn?t give them a licence, at such a sensitive time after the Hillsborough revelations, to cross the line between rivalry and bad taste. Lots of people hate having their teeth drilled - but they don?t walk into the surgery singing vile songs about the dentist. Commuters hate it when they are late for work because their train doesn?t run on time - but they don?t chant abuse at the train driver. All together now... You only sing when you're drilling, sing when you're driiiiiiling, you only sing when you're drilling You're late and you know you are, you're late, and you know you are...