This one surprised me at a restaurant in Bucharest recently- a card advertising the services of a the local Philip Marlow, presented with the bill. Sets you thinking if this is an underused advertising medium.
Perhaps it should have been “integrated” with the “washroom ad” in the same restaurant/bar warning me about STDs- maybe not
But what about advice and a voucher to use persil bio after a particularly messy curry.
The opportunities are endless.