Foxface Help?

[Mistborn]

I got home and I noticed that one of the spines on my Foxface is unsheathed. Think like you pushed the paper back on a straw a bit. Should I be worried? He's in there with a pink tail trigger, but I've never seen them act aggressively towards one another.
I'm trying to get a decent picture of it now.

 

[eatbreakfast]

As long as it doesn't get infected it should be fine and heal.