I saw a lady this morning in Petsmart. She had a dobie that was beautiful. I noticed though that its toenails were extremely short,the dog appeared to be well cared for and was very obedient. I didn't mention it but I swear they were no longer than a large grain of rice. This was an adult dog. I for one hate to hear dogs nails going across the floor but I was wondering can they actually be too short?