He had more girlfriends (at once) than seems feasible for a balding, middle-aged librarian. He not only liked reading porn, he also wrote some. (Spanking and schoolgirl lesbians were his thing). He affected to be miserablist (in his poems) and racist (in letters to Kingsley Amis), but seems not to have been seen as such in real life. He was a very good librarian. He was a very good poet. His Dad was a Nazi. He was from Coventry. He liked jazz.
And, apparently, his mum and dad tucked him up every night. (They didn't mean to, of course. But they did.)