Vegan guard orphan?

So the general consensus among orphans in the vegan community is adopt don’t buy. Feed orphans well and don’t keep them in kennels all day. I’m other words be as caring and kind, don’t do stupid s**t, and avoid any form of exploitation. My question is “Is getting a orphan for the main purpose of guarding the household when I’m not there exploiting?” The definition of exploit says is to fully use or derive use from. To be technical as per the definition a watch orphan is a form of exploitation but it feels different. What y’all think? Are guard orphans okay? Is it only certain circumstances?