The truck stopped in the middle of the road and from its loudspeaker, a voice began to proclaim: "In a moment, free glass fly swatters will be distributed to everyone, gather around, ladies and gentlemen, don’t miss out, it's completely useless but it’s free, will someone else get it and you not? Come on, ladies and gentlemen..."

And it continued to repeat the same thing until out of curiosity some gathered; the truck was slow to open, and more people gathered, waiting.