sat across the aisle from an american couple on a train trip to Venice, they noticed we were speaking English and came over to ask a question:
Them: can we get a taxi to our hotel from the railway station?
Us: a water taxi , depending where it is
Them: how do you mean ... water taxi?
Us: there are no cars in Venice. You walk or you catch a boat.
Them: do you think we could get a bus to our hotel then?
Us: there are no cars, or buses, in Venice. You walk or you catch a boat
Stunned looks, and more explanations. In the end we escorted them to a water taxi at the station. Probably cost them a bit but I didnt think the could negotiate the public transport.
Somehow (to their credit) they got out of the US and within 30mins of arriving in Venice without actually knowing what the place was about. Not sure what was motivating the visit.