If an animal escapes, or is unlawfully rescued from a pound, such animal may, within five days thereafter, be retaken wherever found and again impounded by the keeper of the pound, or by the person impounding it, and the animal shall be held for the payment of the fees and charges, as in this chapter provided. In case the animal was rescued with the knowledge and assent of the owner or keeper, it shall be held for the payment of the reasonable expense and trouble which accrues in retaking the same, to be paid to the poundkeeper, like other charges and expenses.