She probably complained they were too tight and
hurting her delicate wrists.
Marko
If she’s a skinny meth addict, the cuffs may not go small enough to hold her.
In my experience, cuffs are not generally designed with female wrist sizes in mind, and some of the female persuasion have more flexibility in their hands, allowing one to partially “dislocate” a thumb, and slip out of the cuffs.
You’re supposed to have about a finger thickness of space before you lock the cuffs, to avoid pressure from the cuffs damaging a nerve or cutting off circulation. That’s plenty of room for some people to slip out.