I wonder what this calculation would yield: % of rapes involving handcuffs * % of rapes standard handcuffs used in such a way that both the keyhole and key are

I wonder what this calculation would yield: % of rapes involving handcuffs * % of rapes standard handcuffs used in such a way that both the keyhole and key are accessible to the hands * % of rapes where the victim is left unattended and fully clothed (presumably the key is in the clothes or keys) long enough to unlock the handcuffs * % chance of victim remembering to clip the handcuff key to their clothing * % chance escaping from handcuffs will result in a better outcome for the victim * % chance victim is not under constant intimidation and control of the perpetrator Given that the first number - rapes that involve handcuffs - seems almost undetectable and the chances of a successful beneficial escape are quite low, I'm going to say handcuff keys are the equivalent of a tin foil hat as a rape prevention tool.