Haha, what you said reminded me of some software where you'd hit down on the bottom most entry and the next one would, agonizingly slowly, scroll up into view but if you just grabbed the scroll bar and moved it with the mouse you'd get where you wanted faster. If you tried grabbing the scrollbar after you'd hit 'down' on the bottommost entry, your inputs would be unrecognized.

I'm positive it was MS software, but I can't recall now. I only see the memory.