Office milk - organised crime?

Does your office milk come from some unheard of dairy? I feel like all the wet lettuces of the City are being played by some sort of Tony Soprano of dairy, being forced to take 1 pint cartons @ £100 a pop. 

"Hello. Errm, we think we might just get muller milk for £1 for 2 litres. Hope that's okay."

"I'll fookin' muller you you fookin' jumped up silver spoon aunt. Same again tomorrow yeah..."

"Okeedoke. Yes no problem."