Is Your Jewelry Ever Goes Bad?

I poke at my magic again, but it's the same as it always has been. I find Abuela the next day with her jewelry making stuff and she's twisting some wire around littering sharp red beads when I enter. The neatly organized question I prepared melts away, leaving my brain empty, so I just blurted out. Has your jewelry ever gone bad? Like tried to hurt people? She nods. What happened? Did it hurt anyone? Was it obvious? How did you stop it? A well-assigned. assignment had agreed to make a jewelry set for someone I hated. It wasn't him I hated, and my magic's not so strong as all that.