No, thanks, I generally just try to avoid people who annoy me, and I am really hard to annoy. I especially try to avoid riots (kept my head down in a taxi in Panama in '64). There was a lot of serious hatred for Americans in France during the mid-late '60s, and I never found any other place where I felt that uncomfortable.
I did get back to Europe in '69. My ship spent 2 days in Naples & then went to Lisbon for several days. I got off in Naples & divided 12 days between Naples and Rome & then went to Lisbon for the remainder of the time the ship was there.
I always got the impression most American sailors dislike Naples, but it is one of my favorite cities - probably because it is so convenient to Pompeii (and maybe just a bit because of the delicious calamari, gamberi & such and the beautiful ladies)
Jerry