Adobe's Circular Logic
I went to look to download Adobe's PDF Reader today, but it kept on wanting to install some third party download manager. Since that's now impossible, I wanted to read about what kind of data the download manager collects, and what it does to your system. Naturally, I went to the EULA (End User License Agreement) page.
Surprise! They're all in PDF format.
I'd have to agree to something I can't read, to find out what I agreed to. Nice!