pet hunter problem

is it me or the hunter pet have a problem, my pet is on defensive and he go atack other group of mobs.I was atacking the same target as the tank.I played hunter on many expention and this is the first time that the pet do that. My friend started a hunter to and get the same problem.

what i do is leave it on passive and make a /petattack marco

hunter pets in general are supremely dumb on this server. i SWEAR ive left clicked mobs sometimes and my pet goes in when on defensive mode