[MandiesMom]

I agree with gemy...it is going to take training sessions and exercise.

From what I have seen, the fast paced movements of children ( just normal life..nothing out of the ordinary) can trigger fear aggression in small breed dogs. Perhaps he has always been scared of the kids, but now he is older and a little bigger than he was months ago so now he is fighting back (I don't mean the kids intentionally scare him...just their natural quick movements do).

Training sessions with the children will help, I think. Let them give him treats for good behavior. I sort of see the situation as he thinks they are all equal in your "pack"/family. Doing these sessions and the walks like gemy said will help show him that the kids are all his humans.

Training/showing your children how NOT to react when he bites will help I think. If he nips at shorts or ankles, have the child simply and calmly stop walking. Not yelling, but sternly, say to the pup No Bite. Then not move or walk until the pup submits to stop.....the jumping up on the table and freaking out is most definitely fueling the pup's "energy"