Related incident: tech support for a local company was responding to a service call about how the cursor was stuck in the middle of the screen.
The gentleman on the other end of the phone line was complaining about how he ran out of room on the mouse pad and couldn't move the cursor any further across the screen... seems he didn't think about lifting the mouse to fix the problem.
I had a lady that was in a training class and her mouse dropped on the floor and when she put it back on the desk she had it upside down so when she would move it up it went down and when she went left it would go right. She ended up not making it thru the class. she did last 4 days I had my money on 3 days and she would be done.
I used to work for an ISP and most of our calls were from older people in FL it was strange. They were all the same when they called in. I bought this thing cause I was told I could talk to my kids via email but when I call them to ask them questions about it I can't use my phone. the phone company said to call you guys?? god that would drive me crazy.