I’m generally a pretty relaxed person. That is, until something stands between me and the thing I want to do on the internet.
Say, when I’m trying to watch a video and a commercial plays first. Or when I accidentally mouse over a link or banner and get a flyout marquee covering most of the content. Or when the whole window dims to reveal a pop-up ad, forcing me to frantically search for and click the tiny “X” so I can (finally!) go back to what I was doing.