So you don't stretch the ear out when going to pierce it. Makes sense, Pel supposes, due to not having a wonky hole in your ear when you're done.

"Would you pierce mine, when we get back to the estate?" She begins to move away from the jewelry stand, so she doesn't have to hear the vendor declare that she is unfit to purchase any earrings for knife-shaped ears.

The vendor, however, does not appear to be about to say anything of the sort, having gone rather grey at Morrigan's words.