You know when you load a page and all of a sudden it starts yelling at you because the video is set to autoplay? I hate that too. And that’s what I tell my clients when they ask. It’s more of a turn-off than a turn-on, and it’s been that way since the first online ad that did it.

http://socialmediatoday.com/tree-treacy/2169036/taking-annoying-out-autoplay-how-make-intrusive-marketing-work