Honest Question For You … What Makes You Decide To Leave A Website/Blog?

I guess the point I'm getting at is, at what point do you say “I’m done with this” and click on the back button. Is it something in particular that makes you decide to move on?
I'd be interested to see what you're reasons are.
My main reason would be if the website isn't loading. I'm a patient person but if I have to sit there longer than 20 seconds (10 seconds more than most people), I'm clicking the back button. No questions asked.
How about you?

See original post by Andrew M. Warner