So I think that if a slave is to suggest a specific punishment, then it should not be used. Who picks out something that they'd absolutely hate doing? Answer: no one! My fiance wants me to spank him (hard) as a punishment, but I know that he likes me whipping him when we're being sexual, so I don't think even spanking him hard would really be a punishment... So I made him eat some coffee grounds followed by lemon juice for his punishment... and for suggesting that lame spanking punishment that I know he'd secretly enjoy.