When it comes to sex, there's a difference between pulling a train and delaying a train.
An amorous young couple in Morrum, Sweden, did the latter recently when they decided to get busy in a car right next to a train track.
Their lovemaking got derailed when the driver of a passing train slowed down because he feared someone in the car was attempting suicide, according to train dispatcher Mattias Hellberg.
"Often when cars are sitting near the tracks, it can be copper thieves at work or unfortunately a person who has tired of life," Hellberg said, according to DigitalSpy.
The train driver then trained his eyes down into the car and saw the young couple making each other's engines hum, according to TheLocal.se.
"[However], it was two people who were very happy and having a little moment of passion," he said, according to the website.
The driver let the young lovers know they weren't being discreet and rode them out of the area, presumedly on a rail.