Originally Posted By: virtual1
Some insects can detect motion in absolutely every direction at once. (now you know why you can't sneak up on that fly with your newspaper)
Flies detect fast motion better than slow. If you sneak up SLOWLY on the fly and then swat it when you're an inch or so from it, you'll be successful.

The hand is quicker than the eye is,
but slower than the fly is.

Jon

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