A story that needs to be told...thumb sucking

I think it was May when I took Zane and Luke to the doctor for their last well-checks. The doctor said that she could tell Zane sucked his thumb because of his teeth. A while later I talked to Zane about what the Doctor said and asked him what we should do. I suggested buying something to put on his thumbs to make them taste bad. He said, "No, I'll just stop." The amazing thing is that he did! I can't get over how he just understood there was a problem, determined to stop and then did...no more problem. He is amazing! How many three year olds do you think have that kind of will power??