Last night as I ventured into a great tower I found many unsecure containers. Unfortunately they didn't keep plenty of loot, which were to be had further below in the building, but by then I was noticed after having gated out some things. Anyways, as a member of cA I could simply not withstand the conditions of the roof level: keys were even left inside the many unlocked chests and crates. There was nothing else to do but gather all the keys for safe keeping and lock the chests down.
So you locked in that sheep hidden in one of the chests below that barrel boards? The tower owner and you, not freeing it but locking it in, should be reported to animal rights organizations!