"Obviously, I feel real secure and good about things whenever you see that guy come running in from the bullpen in the ninth inning, " Pettitte said.

WSJ: Red Sox handcuffed by Pettitte, Rivera in 4-2 loss

While the pads are easy to remove, they still feel secure enough that they're unlikely to come off while you rock out.

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"It makes you feel like a prisoner in your own home, where we should feel safe and secure, " she said.

BBC: Nottingham