[paulc]

hi people i need some help please my yorkie has started to be aggresive to any one who comes near me or my grandson.

example last saturday i was sitting on the chair with my grandson on my lap my yorkie was in his cage {i always leave the cage door open}he was lying nice and quiet.
my wife was sitting on the sofa when she got up and said it`s time for bed for me came over to us bent down to give our grandson a kiss goodnight.
when all of a sudden timmy came dashing out of his cage barking and jumping up my wifes legs trying to bite her.
i stood up grabbed him telling him no and stop it.but he would not listen.
i took him in another room and he calmed down so i took him and placed him back in his cage and closed the cage door.
my wife was shaken up by his actions.
after a couple of minutes i opened his cage door again but he just ran out and started the whole proccess of barking and jumping up my wife again.
why his he doing this this is not the first time he has behaved this way. how do i stop him please help