Nebo hasn't killed any of his christmas presents yet..........YET....I am amazed!! He will normally murder toys in a couple of days or less. I have a large box I call the "stuffed animal graveyard." haha. If you are asking how long it takes them to "open" their christmas presents.......all of my dogs will open presents, rip the wrapping paper off.....sometimes they have them open in seconds, sometimes they don't finish...depends on if it smells like food or not lol.