However, this time he is not making waves in adland, but in the bible of wayward, volatile, greasy-haired teenagers, Kerrang!.
His crime is publishing a book called Inside Music 2005, which, in a typically vitriolic Kerrang!-style review, is described as "reading like it was written by a couple of five-year-olds", and even worse, referring to artists such as Fifty Cents (50 Cent) and The Snow Patrol (Snow Patrol).
Colegrave is unperturbed. "It wasn't written for Kerrang!," he explains airily.
He points out that Alan McGee (whose record label, Creation, discovered the likes of Oasis, Primal Scream and My Bloody Valentine) says he wishes his book had been around when he first got into the industry.
It has also received plaudits from the "cool hip-hop magazine Tense", Colegrave claims. So that is all right then.