I go to The Ruins of Maraqua. I get the random event 'Something has happened!
For a lost tooth, the tooth faerie gives you 202 Neopoints!!!', plus a new battledome-challenger (I think), whose face nor name show up.
I got a lot of 1-player opponents I haven't fought yet, as I'm horribly inactive in the Battledome, so I've no way of determining which one it is (though the one at the bottom of the list is Eyrieki - but I really don't know if he's just been added).
BUT! Even weirder. I have 3 open tabs of Neopets, after this I go with the second one to The Maraquan Ruins (I want to go fishing, and I want to keep that weird pageview open), and I get the same weirdness. I check with the 3rd... same deal indeed.
Opening a new tab and going with it to The Maraquan Ruins seems to have cured the problem though, and I only got the 202 NP once, so I don't think I'll get frozen for abusing a glitch. But it does make me wonder what the hell is going on.