Signs in Rome

I've been in Rome for a few days. And as ever, there were some amusing signs. Here's a small selection...

This is from the Metro. I particularly like the bottom right one, presumably warning against getting your groin slammed into by the door, and the bottom left, which suggests the danger of getting your bottom caught in the door and carried along by the train.

This one is also quite amusing. I think it was from a demonstration or something...