We have two doxies, and they are 6 months age difference, and different sizes also. The older one thinks all the toys are his (well actually everything in the house...just ask him) so when he gets a toy, our smaller younger one sometimes wants it, and he will keep a close watch to see if he can get it away... if not... he will take off running(just about 3 steps worth) barking to pretend someone is here, then the older one will drop the toy and go barking, then the little one turns around and grabs the toy... the older one has not caught on yet.. ha ha ha Every day at 8 pm they get a treat... and everyday the younger one will get off my lap and go lay on his pillow under the computer desk, by hubbys chair...and do small little barks to remind hubby it is treat time... he never fails... even when we lost power...we knew what time it was by him. lol