Charles Bronson, the notorious prisoner, went on a rampage and attacked 12 prison guards all because Arsenal won the FA Cup, it has emerged.
Bronson, now 61 and a Tottenham fan, reacted badly to the Gunners breaking their nine-year trophyless streak.
Reports add some bizarre details, including that he spread butter on himself first, seemingly to make it harder for guards to grab him.
But he ended up with his ribs broken in the process.
The Daily Mirror cite a letter he wrote to Kate Kray, the ex-wife of another infamous gangster Ronnie:
“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!”
The hard man went on: “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 [Kray] face. It was eerie. Go on son, let ’em have it!”
Bronson first went to prison in 1974 and has spent 36 of the last 40 years in solitary confinement, with only the briefest stretches outside of jail.