Im not an pc guru or programer guys but why dont just do inside the wallet a section with a secound pasfrase. Lets call it vault! And the ability to send part of your funds in to this section with a time lock and an email autorization ? So lets say you want to withdraw money from this vault. Then you first have to give your vault pass fraze, then autorize with email and have an email option to stop the transaction even after autorization is done! Then a clock starts and you had lets say 24 hours or some other random time before the Burst from vault is transfered to your normal account? I believe it would be safe enought! And ewery one can decide if he wants to use it!