hi all, need advise.

my bro's 4mth old maltese behaviour getting worse. barking, biting n dont want to eat her food. she wasn't like tat when she first came in. it started bout 1-2weeks ago.

the thing i cant stand is the barking....she can bark from day to night. we keep the pup outside the house on the day since my parents dont rili like having her, n in the evening when all is back from work, we bring her in. she was ok with this daily routine previously, but now she'll bark n bark asking to come in.

and i also notice that she is kinda thick skin, the more she's been slapped or scold, the more stubborn she gets.

is this the sign tat she's been spoilt?

thanks