The Brazilians must be the best at conveying messages. These set of signs are in the road to Pontal do Sul. I will explain for the non-Portuguese speaking friends: This is publicity for a plumber specialised in septic tanks.
The first one to appear is the one on the right and says:
Is it blocked?
The next one: Stinks?
The last one: Call me?
Brazil is full of funny signs like these ones and I would have a Blog as big as this one only with them