It should be against the rules for your family heirloom to be taken

[imbruhtop_richblood]

technically it is, since heirlooms are esentially unique items and only a few exist they follow this ruling

@Lagomorphica

Rare or unique items such as the Wardens krav maga gloves, compact combat shotgun, or traitor objectives, are always self antagonising when stolen from someone or for no reason, unless there is an immediate purpose or need to steal said item. If the player cannot provide a valid reason, it is self antagonising behaviour.