Because otherwise they would be unable to track movement and move the cursor in the computer screen.
A polish bowling ball.
He got a hole in one.
On dos axes
Jingle Fett
Me: Everything IT guy: Me: I shook the mouse a few times and did some swearing
Use mouse to mouse resuscitation !
I'm having a movement"
He wanted to check his e-mail.
Because your foot would go right through the computer screen!