Fans are convinced the Baggies supporter s*** himself in the stands as his side succumbed to a 3-2 loss to the Robins.
TV replays captured the hilarious moment the man realised his mishap after nature called with him unprepared.
He was walking up the stairs with a pint before quickly grabbing his bum and hastily dashing to the toilet.
One fan at home noticed the incident and uploaded the video to Twitter. It has since been shared very, very widely, unfortunately for the gentleman involved.
Have a look at the clip of the incident below…
In the match, Bristol City survived a West Brom fightback to win a 3-2 thriller at Ashton Gate and move up to fifth.
But it’s safe to say the football wasn’t the only talking point following the unfortunate incident for the match-goer – and fans on social media were in hysterics over the mishap.