Chelsea have rarely imploded under the guidance of Thomas Tuchel, but as Yoane Wissa fired in the fourth and sent Brentford fans into raptures in the Shed End, minds flashed back to the only other time it has happened.
That was against West Bromwich Albion this time last year, when Sam Allardyce stormed Stamford Bridge and his team scored five.
Just like West Brom, the Bees tore the Blues apart on Saturday with their energy, sweeping counter-attacks and clinical finishing, scoring in clusters to leave Tuchel with the task of restoring focus and balance ahead of a big European date with Real Madrid.