Detail: pet will temporarily forget all prior commands and attempt to attack the target at the top of his hate list. /pet attack does not place the target at the top of the pets hate list, it just makes the pet attack the mob at the top of his hate list. The pet will not forget targets it already hates. It will not "forget" movement states, such as follow or guard, it will just temporarily ignore them as he attempts to attack his target. After the mob dies, the pet will return to his previous guard point, follow, or sit down, as previously commanded. The pet may be sidetracked however if another MOB begins to attack him before he has engagued the target OR if another MOB is doing signifigantly more damage to the pet thus generating enough aggro to make the pet switch targets.