This was a a funny experience, and a bit sad too – a bunch of geeks (I know, I’ve seen them later at Ars debating pretty hardcore tech issues) was struggling with the ticket machine at a tram stop. They couldn’t realize how to buy a ticket! Some of them were from Japan, and some from Spain, but there was also one or two from Germany, so the language per se was not an issue. But the interface was – to the extent that after about five or six minutes of struggles they finally decided to get a ride without paying. Amusing!