Steve Sherwood is putting his profession as a financial adviser to use as he counts the cost of conceding that header to Andy Gray in the 1984 FA Cup final.
We are in his office in Grimsby and on a laptop in front of us is grainy footage of Watford against Everton, with Elton John watching from the stands among a Wembley crowd of 100,000.
A cross flies in from Trevor Steven and, well, Sherwood can take it from here.
Steve Sherwood was in goal for Watford the last time they reached the FA Cup final in 1984
Sherwood, now 65, is still angry at the goal that clinched the trophy as he feels he was fouled
'Andy Gray didn't head the ball — he headed my arm,' he says. 'I don't class that as a mistake. I class that as a refereeing error.
'I had the ball in my hands. I remember Bob Wilson (the Arsenal goalkeeper-turned-BBC pundit) coming round to the back of the goal after it had happened and saying, "That shouldn't have counted".
'I've got nothing against Andy Gray. If I was a manager of a team, I'd want my centre forward to be like that. But it should have been a foul. It killed the contest.'
He still remembers the name of the referee, who retired after the game — 'Mr John Hunting' — and recalls being dubbed 'Stevie Blunder' by newspapers the day after the 2-0 defeat.
Some 35 years later, Sherwood, now 65, is still imposing at 6ft 4in and as enthusiastic as ever about Watford and that final.
On Saturday, the club have the chance to go one better than finishing FA Cup runners-up, though they face a formidable team in Manchester City.
Sherwood's advice? 'Get in their faces! You hear people say, "Go and enjoy the experience",' he adds, sitting with a Watford mug in front of him. 'Well, there are two experiences at Wembley — winning and losing.
In his office in Grimsby, Sherwood talks to Sportsmail's Kieran Gill (left) through Gray's header
He proudly drinks from his Watford mug and has urged the current side to go at Man City
'You don't want to be the loser. It's a horrible place to lose. You're going round clapping your supporters, but you feel like you've failed. You've let them down. You don't want that.
'If Watford show that same desire and get in City's faces, you never know. You've got to go there believing you can win, otherwise it's not worth turning up. This is their chance to make history.'
In Troy Deeney and goalkeeper Heurelho Gomes, he sees two footballers who truly care for the club. Sherwood felt that connection, too.
In an old newspaper cutting from the Daily Mail on the day of the 1984 final, there was a feature called 'The Clough Report' — a player-by-player guide to Watford, written by Brian Clough.
Clough managed Nottingham Forest at the
