I just noticed that avatars cannot get drunk, i guess it is a wanted behaviour, eventhough i do not see actually why.

It would be fun getting Kamaria to drink two full jugs of the tavern speciality, and luring her to hit Gryjal

Don't quote me on this, but...

I'm fairly sure the reason why avatars can't get drunk, is due to the fact that they're an embodiment of their deity. So there's probably some sort of divine intervention going on.