Snap Snipped
In my never-ending quest to keep you lot happy, I've modified the Snap options on this page. First, in the top right-hand corner you should find the option to switch Snap on in the first place. If you don't want it, don't click on it.
Second, I've opted not to trigger Snap with mouse over links, but only over the Snap bubble that follows them for external sites. Finally, if you want to get rid of Snap having tried it out, click on the bubble, then choose the Options menu from the Snap bubble to cancel Snap for this site.
Hope this helps.