I am a diabetic and have other serious health issues as well and quite by accident we discovered that we had a self-trained "service kitty" in our lives. Son and his sister Buddha were rescue kitties and Son bonded to me more closely than any other pet in my life. Twice, while I slept, my blood sugar dropped dangerously low and he smelled the "fruity keystones" smell coming from my mouth. He licked my face, butted his head against mine and did all within his power to wake me so I could take my rescue shot. He recently passed over the Rainbow Bridge and I miss him so much. You never know when you choose an abandoned animal friend how they will affect your life but we were blessed with a Guardian Angel named Son who loved us in a very special way.