Think of the ball as a globe. The equator has to hit squarely on the side of the board for it to bounce straight back. As you get further from the center, the angle of the rebound will increase. If the Arctic circle is where the contact occurs, the angle can be quite dramatic. So does this contact on the side cause the ball to wrap around and simultaneously/immediately afterward contact the back? When in doubt (which will be almost all the time in this case) I will assume it did not.
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I swear, Gus, you'd argue with a possum.
It'd be easier than arguing with you, Woodrow.
Lonesome Dove
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