Poster for Lisbon's Metropolitan transports

Every year, the Metro (Underground) and Carris (bus service) suffered some important money losses due to the 'unwanted guests'. To warn and prevent them from using the transport system, we decided to make use of a current portuguese expression to designate a 'wise guy': Chico-esperto!
The message states:_We have an eye on you, wise guy! You don't pay the ticket, then you'll pay the fine. There's no way to go!
Also a flyer was produced. The message used was:_'There is no 'place' for wise guys here!'