It's a heart breaking thought that nobody wants to dwell over, but putting a dog to sleep is something we may all have to consider when faced with the deterioration of quality of life, or severe or dangerous behaviour.

The decision to put a dog to sleep is always difficult and intensely personal. Unless there is a serious urgency, such as an untreatable injury or illness, you will probably have time to examine your options and talk to family and friends. Ultimately the decision is yours, but try to base your decision on what's right for your pet.

Should the worst be necessary, the procedure is quick and, more importantly, absolutely painless. Your vet will administer a measured overdose of anaesthetic, and your dog will quickly slip into a deep and permanent sleep with no discomfort or distress.

It's perfectly normal to grieve. You may even need to take off a few days from work. Grieving is a normal, healthy reaction to the loss of a family member - which our dogs really are. And don't forget that putting a pet to sleep is the final kindness you can offer, allowing your dog to pass away gently and with dignity.

If the pain is too great to bear yourself, contact The Blue Cross, which has teamed up with The Society of Companion Animal Studies to create a special 'Befriender' service.