Well, sure... She's been able to use it for things like that on heists before. We've taught her a bit of self-defense. But...

[ this... may be harder to explain to Cairngorm than it would be to a normal person. He thinks most humans would understand immediately why it would be painful to live life never being able to touch another person; the gems, on the other hand, don't touch each other much at all. ]

She wants to be able to touch people. She doesn't like being isolated from the world. Even if it has its uses, for her, the cons outweigh the pros by a landslide. [ a pause. ] People aren't meant to be alone.