I had to accompany a friend to A&E in Amsterdam once, after she took a little too much, um, stuff. Was v. embarrassed imagining all those Dutch docs and nurses thinking oh, bloody English tourists. But actually docs and nurses v. v. nice and oddly concerned about me and the other friend, even though we felt absolutely fine.
Wasn't until we got back to the hotel that I looked in a mirror and realised my eyes were completely bloodshot. So hardly surprising my Best Girl Guide Responsible Head Girl act wasn't really fooling anyone!