Halloween

As I've been out walking around in San Francisco today, and even yesterday, I saw many, many strangely-dressed people. Some far out costumes. And I think it begs the question:

Which is more insulting? To be complimented on your costume when you're not really wearing a costume?

Or to be wearing a costume and have no one notice?

Because I've seen a lot of strange clothes these last two days, but it makes me wonder if some of the outfits I've seen are really Halloween costumes, or are they just normal clothing for people? On some of the other 364 days of the year, I could swear it's Halloween, by the looks of some of the clothing I see!