I now have two chihuhua's and one's ears are up at 13 wks, and the other ones go up and down. Than I started noticing a flop in the left ear of the 13wk old pup! Is there tricks that can help the ears to stand up permanently? Massage? Can you get them fixed at a vet's?? I am just disappointed. Sometimes they cannot be identified as chihuahau's because of the ear problem. Any suggestions? Also the pup chews all he time, and has started digging at a spot in the living room rug. How do you discipline this breed. I do not believe in "hand spanking"