There’s only so much that passengers on Paris's notorious RER line B can take it seems.
On Monday morning after a long delay caused by a signal failure near at Châtelet, commuters, already late for work, got off the train that was blocked at Aulnay-sous-Bois and began walking along the tracks in protest.
It is not clear whether the passengers had forced the doors open or whether they were opened by SNCF staff.
With so many people on the line, SNCF were forced to suspend all trains between Gare du Nord and Charles de Gaulle airport causing widespread travel chaos.
Commuters were left furious.
“I took the RER B from Cité Universitaire at 8.24 am to go to work at Parc des Expositions at Villepinte. Normally the journey takes 44 minutes, but today it took over three hours," one told 20 Minutes website.
Others who were affected took to Twitter to express their anger.
"To maintain good mental health, avoid taking the RER B all week!", said one tweeter.
Pour garder une bonne santé mentale, évitez de prendre le #RERB toute cette semaine !
— SévèreMaisJuste (@Revolchevic) October 28, 2013
"The #RERB is a disgrace. I remind RATP (Paris transport operators) that users pay for their transport. There's never one day without a problem," tweeted another angry passenger.
— Floy Mestre (@DjFloy) October 28, 2013