Pets and PvP + Guards?

[Philipangoo]

I recall in classic having a mage on Rallos Zek and camping the pet under kelethin on the ground. Then I would target people up on the bank platform where alot of people would hang out and have my pet attack them. People would be like, omg whose Gabaner is attacking me ? No guards would kill my pet. Maybe it was the factor of faction, but I do specifically remember doing that.