Using public facilities.

Watch out for broken off toilet seats... or possibly there was never one there at all. Found commonly in public restrooms.

But it's not so different from the average American interstate rest stop.

One difference, I don't think I've seen toilet seat covers in Europe. Maybe it's just an American phenomenon and/or phobia. Bring yo' own stack if you gotta stay sanitary while here.

Also commonly included: insightful graffiti, witty poetry, simple vulgarity, or phone numbers. In this case, a simple how-to for uninformed users or newbies.