Don't forget that some people do NOT like pets and summons at ALL. Like, not, at, all.
While I played a few summoners class myself in my past, I'd rather not have a permanent pet in DOS, so I don't feel like being forced to bring one with me.
Obviously, that means having a way to get rid of them without suffering a malus since you essentially loose the companion and everything he could have brought to you.
In WoW, there was a way to sacrifice your demon in order to get some neat, long buffs. I wouldn't suggest time-limited buffs as they are a bit tedious in DOS1 with the frequent switch from real time to turn-based and whatnot. So either an unlimited buff as long as you don't use your pet, or something else entirely. No ideas right now.
As to how you could get the bonus : it seems DOS2 will feature some sort of Karma system since they want to keep tracks of characters absorbing souls and all. To further add to this, you could either dismiss your pet or sacrifice him, two actions that would bring you different advantages.
