I drop various chests around the camp to sort items away from the camp chest since there's no multi-select option in the game.
When I leave and come back from camp random companions not grouped with me seem to lay claim on a chest. And if anyone touches it they say it's stealing.
Lae'zel claimed a chest I had for books. Wouldn't let me open it "watch yourself" dialogue loop. So I picked it up and her and Wyl gave me a -5 attitude. Before Lae'zel it
was Shadowheart.