You can reasonably assume that I never want to put all my inventory into a barrel when I hold the interact key. To make looting during fights and for supplies in general, faster and more smooth, always assume that when I open a container it's because I want what's inside it, not because I want to dump all of my stuff.
Have the container that I open selected by default, and have my mouse over it when I open it so that I don't accidentally dump all my stuff in a barrel during a fight.
This is a PC problem, obviously, but it's actually awful, and has ruined several pvp, and pve fights for me, not only because of the game selecting the wrong inventory when I open a barrel, but because I have to stop mid fight to do risk assessment on grabbing a health item that I know I can grab in less than a second if the game works right.
Devs, PLEASE get this fixed ASAP, especially if you really wanna go down this whole arena route.
