A teacher has come clean over what he did with his dinner money when he was a pupil – he spent it on records.

This was back in the 1980s when Rob Grillo, who now teaches humanities at Belle Vue Girls’ school in Bradford, was a student at Greenhead Grammar School in Keighley.

And the records he was buying were not the old seven-inch 45s but the new and cool 12 inch singles and remixes.

The 42-year-old has confessed his obsession in his latest book Is That The 12in Mix? which has just been published.

The 12-inch single he is referring to was a phenomenon of the time and was essentially a single but re-mixed and extended to last six minutes instead of the traditional three.

Mr Grillo of Stanbury, Keighley, a proud “anorak,” also uses the book to detail the obsessions of music collectors and to explore music culture.

He said: “I’ve always been more obsessed with music than sport, and collecting each and every version of every single song from my favourite 80s bands is something I’ve done since I was old and brave enough to keep my school dinner money and go into the local record shops instead.

“Keighley features highly in the book. There’s a chapter about the old Greenhead Youth Club, which was run by Mike Breeze and his team. The place kept so many of us off the streets in those days.

“The memories of DJ Steve Lambert spinning the latest chart hits are still fresh among lots of us 40-somethings – only last year I attended a Greenhead school reunion, and we spent half the evening talking about the old Greenhead Youth Club. One of the highest highs was getting founder member of The Human League and Heaven 17 mastermind, Martyn Ware, to do the foreword for the book.”

This is Mr Grillo’s eighth book and two years ago he released “Anoraknophobia” which charts the lives of sports obsessives like himself – he’s a keen follower of Silsden AFC and fell runner.

The book reached number two in the Amazon sports book chart.

Is That The 12in Mix? is published by Bankhouse Books.