We have a 4 month old yorkie and she constantly barks at anything that was not there before . Eg: I put a spare wheel off my car in the garden and because it has never been there before , she kept barking at it until I put it in the shed. the same with a portable tv I placed on the floor out of the way, she would not stop barking at it and kept going up to it and nudging it with her nose and snapping and barking at it . This also happens with new toys that we buy until she gets used to them being there and realising they are toys for her . Has she got some form of ocd ?. We have had her from when she was 8 weeks and we know her temperament and she is a happy playful dog . Thanks . Ian