This behavior drives me nuts. I'll be like 3 minutes into reading and, bam, a modal popup blocks out what I was reading and I have to click it away. The ones th

This behavior drives me nuts. I'll be like 3 minutes into reading and, bam, a modal popup blocks out what I was reading and I have to click it away. The ones that really make me angry are when I move towards the back button and show a popup (nope, I'm not gonna spend another millisecond here after that). Or even worse, the ads that come in from the top and push everything down the page then leave a minute later.