What method is effective for restraining a rat?

Placing fingers around a rat's lower jaw is an effective method for restraining it. This technique allows for a secure grip that controls the animal without causing stress or injury. By holding the lower jaw, the handler can prevent the rat from biting and maintain control over its movements. This method is not only safer for the animal but also for the handler, as it minimizes the risk of being nipped.

Grasping the tail can cause discomfort or harm to the rat, and may lead to excessive stress for the animal, making it more difficult to manage. Using a net to trap the rat can be effective in some situations, but it can also lead to panic and injury for the animal, making it a less preferred method for routine handling. Holding the rat by its hind legs is not advisable as it can lead to spinal injury or dislocation, and it also tends to scare the animal, making restraint more challenging.