There is this voice again telling us about the importance of keeping humor in mind at all times. Since I saw this sign I believe that also sign designers keep humor in mind even though the humor is some sort of wry. I'm not sure if I understand the sign correctly but I guess it is saying: Do not embrace the train! Aw, c'mon, don't be such a kill-joy! This is exactly what everybody wants to do, right?
Kidding aside, I'm not convinced that someone who wants to jump off the platform can be stopped by a sign like this.
In what way do you perceive this sign?
There's another sign fail post on Buenos Aires Perception:
Beware of Businessmen in Buenos Aires?