As the least interested party, I am amused by their physical disproportion. As for my own dangerous encounters, I have been scared only once, when I refused to share in the feelings of several drunks celebrating our football match with Germany. Fortunately, they confined themselves to verbal attacks. Our discoveries go by unnoticed. Most street corners, even the busiest ones, do not have a waste bin.
Public toilets are virtually non-existent.
I always clean up after Ferda. I don't do it because of the mayor, I do it because I have my pride. One of the first things I had heard from our immigrants coming back from exile, was their terror caused by the omnipresent dog dung in the most beautiful parts of Prague. We often meet up with foreigners. The Japanese don't make any noise at all.