Imagine the scene, you are in a pub watching your team play your bitter city rivals only for someone to hypnotise you into cheering for the side you loathe so much.
Well, that nightmare came to reality for a group of Arsenal and Tottenham fans who were included in a social experiment for this weekend's north London derby.
The study, conducted by Green Flag, saw fans from each side breach the gap and cheer for their arch nemesis with one Gunners fan even letting out a loud cheer after his side's 2-0 loss was confirmed. The video can be seen below.
Hilarious stuff. The Gooner-turned-Spurs fan truly is ecstatic with the result despite Mauricio Pochettino's side securing a place above Arsenal for the first time since 1995.
The fan claimed: “We turned up. We were all over them in every department. Easy.”
Of course, one he was brought back to reality, the fan looked rather sheepish after discovering what had occurred. Probably means he will never leave the comfort of his home to watch a derby again.
On the experiment, Dan Titley, head of marketing at Green Flag, said: “It’s clear we’re a passionate nation when it comes to football, but how much the UK public are prepared to give up for their team is incredible.
“The North London derby switching experiment is set out to show just how easy it is to switch – even in situations when switching isn’t necessarily OK.”