Not sure if anyone has ever discovered this?....But when you place a lock on a fireplace or planter, It places under them. Normal player
cant get to the actually "standard" lock to lock it. Code locks can be accessed....as long as the fireplace or planter in placed on a floor and not a foundation, cause the code lock is long enough to clip through the floor to access.

Also was wondering if horse troughs can be added to place locks on?.....Thanks

Wasnt even aware you could place locks on the fireplace or planters never tried lol. I guess I will have to update to control those. 

lol....ok. Thanks