how old is he? when he does it at home, are you playing with him? throwing balls//tug of war with a rope toy? the barking at you may be he is asking for you to play with him, but it is difficult to say without actuallyseeing him do it, murphy our cockapoo is 5 mths old, and still play bites, i distract him with a toy, take him for a walk, and let him off lead in safe areas, so he can really run off his pent up energy hope this helps x