Hhhrmmm... Not sure. Mosty throwing ideas at the wall. Possibly one and one? Since that would be the max "Ooooh, now that's interesting~" reaction (and possibly spark him guessing something close to the reason for it. As well as getting him on a quest to find more shards because poking things that shouldn't be poked is fun~)

...however, if I'm reading his plot skill right... he could make part of Anna's territory a safe zone for him...

Skill: Safety Net - Walking the perimeter of a stationary area up to 100 feet in radius, magically designate it as one that will never allow you harm. Does not make a barrier or protect others. Not immune to effects from attacks or disasters occuring outside the boundary.

So if that's at all a thing you'd wanna hav a go with? good opening for him to actually show off and thus keep the skill