I guess different people are offended by different things, or at least take them in different ways.

I think one of the main differences is that you probably get out and about a lot more than I do in social settings, and meet new people more often than I do.

I must say, I almost never have these sorts of encounters anymore. But I don't get around much anymore either. These days they're so rare that rather than feeling offended I tend to feel wistfully nostalgic.