Killer Chest Perk--Dragon Stash
You've collected many things and these Survivors can't be allowed to steal from you, when a Survivor opens a chest a cloud explodes from within giving them a Hindered effect for 5 seconds and gives a loud noise notification. The item inside the chest has 30/40/50% less charges and at tier 3 the chest closes after being looted, resetting the trap.
As a Survivor I am a hoarder, I love looting chests and I have observed that when I try to loot chests I am usually beaten to the punch and they are all looted. This perk would never be meta but it will always be useful, especially if you use Territorial and a Cut Coin. This would be a gimmick build and not a serious build but like I said, Survivors love looting chests and you'll always get use out of this.