Final answer:
The instrument used as a last resort for handling an intractable cat is a catchpole, which enables safe restraint of the animal while minimizing risk to the handler.
Step-by-step explanation:
The instrument used as a last resort when handling an intractable cat is a catchpole. A catchpole, also known as a control pole, is a long pole with a noose at one end, which is used to safely restrain animals, particularly those that may be aggressive or fearful, without getting too close.
While towels may be used for calmer cats, and leashes and snares can also serve in certain situations, the catchpole is specifically designed for more challenging and potentially dangerous scenarios. It is important to use such an instrument with great care to avoid causing unnecessary stress or injury to the animal.
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