When Brentford travelled to Victoria Road on Tuesday, April 21 2009, it was expected to be a promotion party for the travelling Bees fans.
A 3-0 home win over Accrington Stanley three days earlier had put Andy Scott's men on the verge of promotion back to League One, and three points in East London would seal the deal.
They may have been taking on a Dagenham & Redbridge side only in their second season as a Football League side, but the Daggers were no mugs and had plenty to play for themselves, chasing a League Two play-off place.
And John Still's men certainly put the champagne on ice for Brentford, storming into a 3-0 lead by the 55th minute thanks to goals from Mark Arber, Soloman Taiwo and future Bee Sam Saunders.
Damian Spencer pulled a goal back for the Bees with five minutes remaining, but by then the damage was done and the hosts held on to win 3-1.
There was a happy ending, however. Four days later, Brentford won 3-1 at Darlington to secure both promotion and the League Two title.
Bees boss Andy Scott did not forget just how easily the Daggers had taken apart his title-winning side, returning for a triple swoop that summer to sign Saunders along with his team-mates Ben Strevens and Danny Foster.
Dagenham had the last laugh over Scott, however. Their 4-1 hammering of his side on a dark February night two years later sounded the death knell for Scott's reign as Brentford manager, and he was sacked the next day.
In terms of league meetings, it is all square between the Bees and the Daggers, with three wins each from six meetings since the East London side made the step up from non-league football in 2007.