We have successfully found the owners of lost pets using microchip information several times. It is very gratifying to know that, even if a collar and identification tag is torn off or removed from a pet, we can still identify the pet and locate its owner. Often pets explore these objects by pulling or chewing on them. Be aware of these hazards during the holidays - this can avoid accidents. Monitor your tree to make sure it has not fallen within reach of your pet.
Cats especially love to chew on tinsel.
Swallowing it can cause choking or obstruction of the digestive track. Hang breakable ornaments on high branches and secure them with wire if you suspect your pet may jump on or shake the tree. Try to make Christmas tree lights and other electrical cords as inaccessible as possible. Never allow candles to burn where they could fall or otherwise be accessible to your pet. The flame often attracts dogs or cats.