Incapable of "Animals" with burning passion for skill "Animals"

[GiantSpaceHamster]

The "Vengeful Hunter" background applies "Incapable of: Animals", with a tooltip clarifying that Handling is not allows for this pawn. The same pawn has a burning passion for the Animals skill, whereas I was expecting it to be a dash indicating the pawn would not do the skill at all.

I'm not actually sure if there are other tasks under the Animals skill aside from what "Handle" covers. There aren't any other jobs listed in the work tab that appear to be related to the Animals skill.

Screenshot attached.

[Pheanox]

Are you playing with mods, this shouldn't be possible in unmodded RimWorld.  If so, can I get a save to give to the devs?