wrucker

I have a new Maltipoo puppy named Stone. He is about 4 months old now. He loves to bite at my socks and pant legs. When I tell him "no", he stops moves away from me and then starts barking at me....quite an attitude! He also barks at me when I'm in the bathtub. Any suggestions? I'll take suggestions on getting him to stop biting my socks and pant legs also! Ha! Thanks!!!