I found this on Tipper Friday night. It had to have happened between 3:30 and 7 o' clock on Friday. She was in the backyard playing fetch and loose in the house. I never once heard her scream, cry, stutter step, wince, or give any indication that she got hurt. The puncture wound is an inch and a half deep (per the vet who cleaned it out on Saturday), and fur seems to have been pulled out - there is NO fur in the area that's bald. There was nothing in the wound and there was nothing (ie splinters, dirt, shards) around it. And I don't think that Tipper can reach it to lick it. PuncturedTipper by taqroy, on Flickr This picture makes it look better than it actually is - because of the way I pulled her leg up it makes the puncture look smaller. It's probably 1/2 inch long and looks...nail file shaped is the best way to describe it. We've searched the backyard and the house and can't find anything that would both poke into flesh and pull fur out. I'm mostly spreading this picture in hopes of ideas, because if she had been hit like this almost anywhere else it could have been really REALLY bad. I would like to figure out what it was so that nobody else can puncture themselves.