On Monday, as its some of its staff went on strike over controversial modernisation plans, Southern Rail tweeted this, asking customers to tweet the RMT union and "tell them how you feel".
But things didn't quite go to plan when the resounding majority of people replied – some using fruity language – to say that in fact they supported the strike action.
In the words of one customer, Southern's service is "fucking bollocks".
Some people were not very nice at all.
It got personal.
More than one person called for Southern to lose its franchise – a sentiment that has grown over months of industrial action from Southern staff.
Another pointed out that the @SouthernRailUK Twitter account went back to apologising for delays and cancellations and the like (although there will be more of those during a strike, in fairness).
The tweet was, some concluded, an attempt to pass on the blame for a troubled service.
And it turns out James the conductor left about a year ago anyway.
The whole thing appeared to have backfired slightly. Or, as one man put it: "You stood on your bollocks here you muppets".
Southern is sticking to its guns, however, and defended the tweet in an emailed statement.
"Our aim [with the tweet] was to get the debate going and to let people know exactly what our very fair and comprehensive offer is and how we are trying to modernise the train service for our passengers which the RMT leadership is trying to block," it said.
"Our service has not been good enough, and the main reason for that has been the RMT union leadership’s refusal to talk and do a deal. Thousands of passengers are demanding to know what we are doing to bring this dispute to an end. We felt there was a need to let them know."
Southern also said it would pay its conductors £2,000 each if they voted to end the strike action.
In response to this offer, RMT said on Monday morning: "This dispute has never been about money, it is about guaranteeing that there is a second, safety-critical member of staff on-board the current Southern rail services.
"Despite the Southern spin, this dispute is not solely about the doors – it is about giving passengers that safety guarantee that goes with the second member of staff on the train."