Which knot is used to secure the ends of a makeshift muzzle around the neck?

The reefer's knot, often called the double fisherman's knot, is specifically designed for securing two ends of a rope together, which can make it useful in creating a makeshift muzzle for animals. This knot is known for its ability to hold securely under tension, ensuring that the makeshift muzzle remains intact and prevents the animal from escaping or removing it unintentionally. It is particularly advantageous in situations where a strong and reliable binding is necessary, such as when dealing with an anxious or agitated pet.

The other knots listed do have their own uses. For instance, the overhand knot is simple and easy to tie but does not provide the same level of security in this specific application. The square knot is more suited for tying two similar-sized ropes together rather than securing a strap around the neck. The bowline knot, while strong and able to create a loop at the end of a rope, is not ideal for wrapping around an animal's neck as it could potentially loosen under pressure. Therefore, the reefer's knot stands out as the most suitable choice for this situation.