Often times we think of the havoc our pets wreak on our holiday decorations. However, we also need to consider the health risks decking the halls can cause for our pets. We hear about poinsettias being poisonous, but mistletoe and holly are even more toxic for pets. They can cause gastrointestinal illness, as well as cardiovascular problems, according to the ASPCA. If you have a live tree, make sure your pet can’t access the water, as it is a breeding ground for bacteria. If you have a cat, don