Mouse? sounds more like rats.....
Say I want to see who's posting a particular phrase over and over, on certain social sites. I google for "phrase" .
After opening up about 50 of these my browser slows down a little, so I may spend the threshold amount of time with the mouse over a result I have no interest in. Of course I am scrolling with the mouse over the centre of the links, to make it easy to open one when I find one for the site of interest.
Does this mean I have any interest in that site or what it stands for? nope, my interest is in the person(s) posting my keyword.
Now, if Google could come up with a Preference setting so it won't deliberately refuse to give me ALL the results (we have omitted similar results........ HEY I asked you to SEARCH, and I will decide if I like them or not). Another graduate of the MS "we know what you want' school.
Speaking of MS, they have prior art on this.....the Office menus that reorder their content according to what you used more often most recently............bad luck you are just about to switch to a different project with different requirements.