Britain's most notorious criminal Charles Bronson proved a slippery customer for the Full Sutton prison guards when the Tottenham fan smothered himself in butter and went on a rampage after Arsenal won the FA Cup.
In a letter dated May 19 to Kate Kray - ex-wife of fellow villain Ronnie Kray - Bronson admitted he "lost it" and attacked a dozen guards when his favourite side's arch-rivals came from 2-0 down to beat Hull at Wembley.
The incident bears similarities to when Bronson assaulted 12 officers at Wakefield Prison in 2010.
In the letter, obtained by the Daily Mirror, 61-year-old Bronson wrote: "Not good news. I've had another rumble. This time with a dozen riot mob on the yard!
"Obviously I had my reasons and I'd sooner swallow teeth than my pride. Sadly I came off worst - got smashed up ribs.
"Life goes on Kate! You won't hear me moan!"
He added: "It was sunny! A scorcher! Arsenal was playing Hull. I so wanted Hull to win, coz I'm Spurs.
"I got Lurpak and spread it on thick. Then a small cloud appeared. I swear I see Ron's face. It was eerie. Go on son, let 'em have it!"