Awww Mary Ann! I just read this and I'm so sorry for poor little Pucci! You do wonder what he could have done don't you! I hope his paw feels better very soon and that he is back to his normal little self! (arthritis???) Our little fellow Skye was limping last summer and we could tell he was not a very happy little camper. We checked his paw for cuts or burrs but nothing. He didn't fuss when we were checking either. The next day we could see some swelling and when we ran some cool water over his paw it was clear that he had been stung by a bee or wasp. Fortunately he didn't have a bad allergic reaction and healed up very quickly. Hugs to you and special skritches for little Pucci from a Yorkie Mom who suffers from bad feet and from 2 little yorkie terrorists who think everyday is made just for their pleasure.