While I was at the "girl pics" forum, a program called "performance optimizer" tried to upload itself onto my machine. This is, of course, an adware/spyware program.

I am not sure exactly what triggered it. I had a few pictures up in various tabs, so I'm betting it was one of the picture sharing sites people are using. I am of course reluctant to go back to see which site it is.

I'm using Firefox. Who knows what might have happened if I'd been using IE.