In my blog’s footer are three links, “RSS”, “JSON Feed”, and “Surprise Me!” They are just part of the theme I believe, but “Surprise Me!” doesn’t work—it gives a 404.
Is that something I’m in control of or a bug?
It seems odd that the link is there in the footer by default, if it requires a plugin?
He-he, it looks like it slipped through with an update from Manton’s blog. As the plug-in author, the free advertisement is a nice surprise! 
But of course, you’re right; that shouldn’t be there by default. I’ve proposed an update to the theme that @manton hopefully accepts.
Oops, sorry about that! I’ll merge in the fix today.