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回答: 以其人之道, 還製其人之身rud_nc2004-08-19 08:05:52

The whistle won't hurt the dogs, people use them to train dogs.

I don't think the whistle will bother cats, you can check with whoever sells the whistle.

Dog whistle is what I'd seriously try if I were you.

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Thanks for your advice. -h1bcap- 給 h1bcap 發送悄悄話 (15 bytes) () 08/19/2004 postreply 10:50:04

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