Originally Posted by
Khamsin
I think when you are charmed by a mob, any pets disappear (wyvern, automaton, avatar, pet).
Apparently, being charmed by a player doesn't cause the mob's pet to disappear. We've just never seen it before because the only mobs that can charm are uncharmable themselves (i.e. beastmen or NMs).
However, it would be interesting to see someone with a charmed colibri+player pet get charmed themselves (by having someone else load a colibri with virelai, then the person with the pets aggroing it), to see if the other player loses their charm or simply disappears.