Would you know what to do if while visiting with your therapy dog an accident happened? Let's say for example your dogs tail is accidentally run over by a motorized wheelchair. One of the first steps you need to take to ensure your own safety as well as your dogs is to fashion a muzzle.
Many therapy dog organizations have bandannas as part of the canine uniform...this bandanna can be a life saving piece of material. If the bandanna from your dogs uniform is too small to create a secure muzzle for your dog consider carrying a larger triangle of fabric with you.
Once your therapy dog is securely muzzled you can safely proceed with the necessary first aid to address the wound on your dogs tail. Remember that your dog may be frightened as well as in pain and you will likely have an "audience" while performing first aid. Having the muzzle will help to ensure that no one is unintentionally bitten.