My 16 year old son decided to help a friend this weekend to take care of her 3 moths old dog, the dog was with us for 3 days and he was all the time playful, happy, well eater, drinked water well and very active. Today I found out that the little dog don't have the rabies shot yet, this made me really mad and upset ( because I asked this girl several times if he had it and she said yes ), also brought back my severe OCD because my son told me that the little dog nibble him and scratch him ( no broken skin in both cases) and now my OCD is driving me crazy with the idea that he can contracted rabies even with no broken skin, no bite, only small scratch that disappear after 5 min and some little nibble in the hands, I want an expert opinion if possible, if i going nuts or I have reasons to be worry about this incident? please answer me as soon as you can. thanks very much.