Possible my dog is a ninja.
I have a ninja dog. All black. Utterly silent. Skulks through the shadows when you are not looking. Never where you expect him or remember him being. Could steal the stake off your dinner plate and you would never know it was gone except for the vague feeling that you were still hungry. Sometimes he steels stuff and then brings it back and dumps it in front of me to prove his skills are intact.
Sort of a reminder to be afraid. Be very afraid.