This is one the ads that have been shown on public transport in France recently in a bid to encourage better manners among commuters. 

At the heart of the "civility campaign" is a collection of "rude" animals tormenting "civilized" humans. One ad, for example, shows a buffalo barging onto a crowded train while another shows a sloth taking up more than its fair share of space.

"We chose to use a deliberately offbeat and humoristic tone, with slogans formulated as maxims," the company said in a statement introducing the new ads. "The campaign highlights the absurdity of behaving uncivilly on public transport, bringing to the fore the idea that each act of incivility is based on an absurd logic that not only harms the group, but also harms the individual acting out of line." Very effective, don't you think? This link to International Business Times will show you another "animal" ad. The campaign motto is "Staying civil right down the line".