With regards to Barbarian Rage, When player are wanting to roleplay and both players are set to subdue if a barbarian has used rage and is subdued after a while they will lose hit points due to the increase of constitution and will pass away. Is there some way that when you are knocked out or your hit points reach 0 effects from rage dont effect your negative hit points in some way.
With regards to the crowbar could the roll for opening doors you roll max like in lock pick, Im not saying for this effect to work on chests because i like the chance to break items for failing rolls but with doors i assume a character would be giving it his all and pulling as hard as they can.