They sure can surprise you
My Mocha was the bruiser out of his litter...my breeder expected him to be around 6lbs. Well, he's a year old and a whopping 3lbs. He turned out to be smaller than all of his siblings. He's got a really small frame and tiny bones. I always worry about the slightest little thing. But forunately, he doesn't get into
too much trouble *knock on wood*. He's actually the perfect size for me, as I'm only 5 feet tall and 105lbs, so whenever I hold him he looks pretty normal sized but when somebody bigger holds him, he looks super tiny lol.