It's fair to say most managers are fairly pleased when their team beats Barcelona.
But Atletico Madrid boss Diego Simeone took that to a whole new level after their Champions League quarter-final win.
Atletico earned a classy 2-0 victory on the night in the Vicente Calderon stadium to go through 3-2 on aggregate.
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Atletico overwhelm Barca
They may have been up against a Barcelona side struggling for form, but try telling that to Simeone, as he celebrated reaching the semis by waving his arms and screaming wildly:
We've never beaten Barcelona to the last four of the Champions League, so we can't promise we'd react any differently.
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He was also seen filming Atletico's overjoyed fans on his mobile. In fact, the animated Argentinian barely stopped for air all night, barking orders at his players from the touchline.
To be fair, Simeone must have got used to the odd celebration, having steered a mediocre Atletico to a side who have won La Liga, the Europa League, and the Copa Del Rey.
His latest tactical masterclass against Barca is now seeing him hailed as the best manager in the world.
Not only did he mastermind a clean sheet on the night, his side outscored a Barcelona front three of Lionel Messi, Luis Suarez and Neymar across two games.
It was Antoine Griezmann who opened the scoring and the Frenchman doubled their lead with a late penalty to send Atletico storming through.
Tough night for Enrique
Meanwhile, Barcelona boss Luis Enrique had little to smile about, admitting he took full responsibility for the defeat.
Enrique must quickly find a solution to reinvigorate his flagging team. Messi is in some of the worst form of his career, and without him at his best, their entire system is simply not working.
Regardless of what Enrique had to say, it was always going to be Simeone who stole the headlines - and the all-important spot in the semis - due to his clever game-plan and crazy celebrations.
Can Atletico go on and win the Champions League? Have your say in the comments!