"push button for luck"

11th Avenue and 22nd Street, Saturday, March 19th

I'm gratified to see that someone has found an honest use for these dummy buttons which are found all over the city. The Department of Transportation installs them to make pedestrians feel that DOT cares, but I understand (based only partly on personal experience) that they actually aren't connected to anything.

Sweet. Do you think I would be infringing on copyright laws if I copied the idea in Lisbon?