Fit and strong Medusa laughed at the small Posture Trainer. Indeed, it’s small compared to my other training devices, but it is still inescapable and very restricting! Even Medusa wouldn’t be able to break it. She didn’t believe me, so here we go: the fierce Latina girl was locked in the device for a good while. I threw the key on the floor, but she couldn’t even reach it. Also, because she laughed at me, I used the HUGEST padlock I could find for her waist belt. Just to feel better about myself. And I did, sitting back, watching Medusa struggle in the Posture Trainer! She learned a lesson today!