A bad dream: cats and snake

A dream.  I was in a bedroom with someone else.  He was showing me his Siamese twin cats.  The cats walked around the room with such poise even though they were joined together.  Then the person let a rattlesnake out.  The snake starting to strike the cats in the neck area.  I was stunned.  "Why are you doing this?"  I asked the person.  Some cruel response was given.  I walked out of the room and then I woke up.