Shackles are a recurring punishment in Big Brother that is usually the result of a Power of Veto competition. The HouseGuest who receives this punishment must be shackled to the Housemate of his or her choosing at either the wrist or the ankle for 24 hours.
Big Brother 8
Kail Harbick and Amber Siyavus spent 24 hours handcuffed to each other at the wrist.
Big Brother 12
Brendon Villegas was handcuffed to Britney Haynes for 24 hours.
Big Brother 14
Britney Haynes and Danielle Murphree spent 24 hours chained together at the ankle.
Big Brother 15
McCrae Olson and GinaMarie Zimmerman were given "The Gift of Friendship" by Head of Household Spencer Clawson, which meant that they had to be tied together at the wrist by a "friendship bracelet."
Big Brother 16
Victoria Rafaeli and Caleb Reynolds were attached at the wrist for 48 hours by a "vine" as a part of the "Adam and Eve" punishment for winning the week 6 Battle of the Block competition.
Big Brother 17
Vanessa Rousso and Jackie Ibarra were attached at the ankle for 24 hours in which Vanessa was the squire to Jackie the knight as a punishment from the week 6 Power of Veto competition.
Britney Haynes is the only houseguest to be shackled twice. She is also the only houseguest to be shackled on their second attempt.