(NSFW)ish ...A boy and his mother are standing on a train platform when an announcement on the tannoy plays “attention the next train on platform 2 will not be stopping”
The boy shuffles closer to the edge and his mother calls out “billy stand away from the edge of the platform or the train will suck you off.” The boy stops for a second, looks at his mother then back at the tracks. The boy then pelvic thrusts and announces “come onnnnn train”