I have always hated the Monday-holidays: Labor Day, Memorial Day etc. I hate the 4th of July, because even though it doesn't fall on a Monday, the same thing happens. Which is, nothing. None of my friends are ever really willing to "get together" on these days, because I dunno we're just all too jaded or something like that. But it isn't the fault of any of my friends that I don't have a good time on these "holidays". And in truth, I'm probably much more jaded than any of them, at least in terms of constantly being sarcastic, distant and always sort of being on the margin of the whole social circumstance. And that's probably by choice though I do get lonely like anyone else.
In a literal sense, the reason I hate Monday holidays is the fact that libraries shut down. So I'm left with one less way to get myself out of the house. And it's not just that one day, it's the three day weekend where I always seem to slowly sink down into a morass of fidgety depression and anxiety.