Behold grasshoppa': A psycholocgy student is doing an experiment. She places a frog on an electrified grid, equips it with a miniature traffic signal and records her findings thusly;

green signal turns red, grid is electrified, frog leaps 10 feet.

- one leg is amputated, experiment is repeated, frog leaps 7.5 feet.

- a second leg is amputated, experiment is repeated, frog leaps 5 feet.

- a third leg is amputated, experiment is repeated, frog leaps 2.5 feet.

- fourth leg is amputated, experiment is repeated, frog quivers then explodes into flames.

Conclusion: frogs with no legs are color blind.

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