* Place all pets on hold (everyone has the AA)
* SK targets NPC
* SK casts spell on NPC or engages via melee
* NPC engages via melee or casts spell and all pets dive in immediately
At no point did I issue the pet attack command to any pet. The instant anyone takes damage in the group pets go to town.
This is especially painful when you pull multiple and your pet fly's out at warp speed to engage the caster that separated from the pack you pulled to cast on you while the others run up to your face. Pet then proceeds to die and then the SK is handily summoned to where the caster is standing. Meanwhile, the other mobs back at camp eat everyone, or a game of "ping pong" ensues.
It's amusing for sure

As a work around for me personally, I now pound on the pet hold button repeatedly. Issuing repeated pet hold commands keeps them from engaging 95% of the time. I mean, every button I use I have inserted "/pet hold" into it trying to combat this.