Yeah Jim.....My Dad was an Pennsy engineer and we traveled free by train back in my childhood (when there were still passenger trains) and I remember reading those signs as some of my earliest "reading".....and also asking why! AS a 6 year old I was pretty disgusted and remember always looking a bit differently at the tracks by the depot.

JOKE:

Two winos are wandering along the railroad tracks. On board the oncoming passenger train is a guy in the restroom who has found the toilet broken. He can't wait any longer, so as the train speeds along, he hangs his ass out the window and "lets it fly." The train is just passing the two winos and they get hit with the shit and knocked to the ground. The first wino, dazed, asks, "My gawd what kind of tobacco was that guy chewin'?" The other one answers, "I dunno', but did you see the lips on that motherfucker?"

Spaw