A couple of times I've got a pop up while doing stuff at my site. This happened to anyone else? One time I got something about the WWF (animals, not wrestling) and another time it was altogether less work friendly. I apologise to anyone who's had a porn pop-up while looking at my site... that's hardly my line of business.
I'm not sure if my site has been compromised, or if it's the browsers I've been using on my PCs, though I doubt it as it's happened both at work and on my home PC. Hmm.
Anyway. If it's some script kiddie jackass then... well, damn, frankly. Tools.