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Octopuses prefer to use different arms for different tasks, scientists find
(www.theguardian.com)
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rule #1: be kind
If humans had 8 arms, we'd reserve one for back and butt-scratching.
I'd reserve at least 2 for wanking
I would reserve two for not wanking.
That leaves a possible 6 other arms to be reserved for wanking!
... I might have been overzealous at estimating how many arms I would need for walking. One part-time is plenty.
Damn right!