On his office walls, posters warned about the virus.

So many posters over the past few days have been warning me about the Jewish Lobby.

"Vienna must not become Chicago," the poster warned.

On a nearby street an orange poster warned that someone's bag had been snatched recently.

A poster on the door warned: "Bring your liquor inside but not your beer."

"They are tiring us out," warned a new poster that students pasted all over the center of the city.

"They will not hesitate to open fire," the posters warned.

Shandy now intends to expand the scheme to include more shops, and posters warning thieves they are being watched.

An anti-crack poster off the main corridor warns: "Be smart, don't start."