Is the owner of a camel tethered to another camel that is not carrying a rider liable for the harm caused by the tethered camel?

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The owner of a camel tethered to a second camel that is not carrying a rider should not be held liable for the harm caused by the tethered camel, unless the tethered camel has its own driver, because the rider of the first camel cannot fully control or protect the tethered animal from causing harm.